Cardinal Numbers

number expressions
0 zero, cipher, goose egg, nary, naught, nil, nix, no one, nobody, none, nothing, nought, null, zeroth, zilch, zip, no-, non-
1 one, a, ace, all, an, annual, azygous, bit, each, ephemeral, every, hourly, individual, lone, monad, monarch, monarchy, monogamic, monogamous, monogamously, monogamy, monogram, monopoly, monthly, once, ones, only, particular, single, singly, singular, singularity, sole, solitary, solo, unary, unicycle, unilateral, unique, unit, unite, united, units, unity, weekly, yearly, hen-, mon-, mono-, uni-
2 two, base two, biathlon, bicolor, bicycle, biennial, biennium, bigamist, bigamous, bigamy, bilateral, binal, binary, biped, bipedal, bisect, biyearly, both, couple, crumb, deuce, dimeric, dimerous, dimeter, dipody, double, double agent, double cross, double-entendre, doubleness, dual, duality, duet, duple, duplex, duplicate, duplicitous, duplicity, duumvir, duumvirate, dyad, dyagram, mark twain, monogamic, monogamous, monogamously, monogamy, octave, pair, semiweekly, tandem, twain, twice, twin, two-fisted, di-, bi-, bis-
3 three, tern, ternary, tertial, thrice, treble, trefoil, trey, triad, trial, triangle, triangular, triathlon, tricolor, tricycle, trident, triennial, triennium, trigon, trigram, trigraph, trilateral, trilogy, trimeter, trimonthly, trinary, trinity, trio, triple, triplet, triplex, triplicate, tripod, tripodal, trisect, triumvir, triumvirate, triune, triunity, triyearly, tri-, tri-, tris-
4 four, dual axle, four-star, nibble, olympiad, quadrangle, quadrangular, quadrennium, quadriennial, quadricycle, quadrilateral, quadriplegia, quadriplegic, quadruped, quadrupedal, quadruple, quadruplet, quadruplicate, quartal, quartet, quaternary, tetrad, tetragon, tetragram, tetrahedron, tetrameter, tetra-, quadra-
5 five, base five, cinque, five-star, lustrum, pentacle, pentad, pentagon, pentagram, pentahedron, pentameter, pentangle, pentathlon, quinary, quincunx, quincux, quinquelateral, quinquenary, quinquennial, quint, quintal, quintet, quintuple, quintuplet, quintuplicate, penta-, quint-
6 six, deep six, half dozen, hexad, hexagon, hexagram, hexahedron, hexameter, hexangle, senary, sexenary, sexennial, sextal, sextet, sextuple, sextuplet, sextuplicate, six feet under, hexa-, sex-
7 seven, heptad, heptagon, heptagram, heptahedron, heptameter, heptangle, heptathlon, septenary, septennial, septet, septilateral, septimal, septuple, septuplet, week, hepta-, septe-
8 eight, base eight, byte, dual tandem, octad, octagon, octagram, octahedron, octal, octameter, octangle, octaval, octave, octennial, octet, octilateral, octonary, octuple, octuplet, tandem dual, Tuvalu, octa-, oct-
9 nine, ennead, enneagon, enneagram, enneahedron, nonagon, nonal, nonary, noncuple, nonet, nonuple, novena, novennial, ennea-, nona-, novem-
10 ten, base ten, bel, decad, decade, decagon, decagram, decahedron, decalogue, decameter, decangle, decathlon, decemvir, decemvirate, decennial, decimal, dectet, decuple, decurion, denary, dicker, order of magnitude, tens, deka-, deca-, deci-, da-, dB
11 eleven, hendecad, hendecagon, hendecagram, hendecahedron, undecagon, undecennial, undecimal, undenary, hendeca-, undeca-, undeci-
12 twelve, base twelve, dodecad, dodecagon, dodecagram, dodecahedron, dozen, duodecennial, duodecimal, duodecuple, duodenary, dodeca-, duodeci-
13 thirteen, baker's dozen, long dozen, triskaidecad, triskaidecagon, triskaidecagram, triskaidecahedron, triskaidekaphobia, tredeci-, trideca-, triskaideca-
14 fourteen, fortnight, fortnightly, tetrakaidecad, tetrakaidecagon, tetrakaidecagram, tetrakaidecahedron, quattuordeci-, tetradeca-, tetrakaideca-
15 fifteen, pendecad, pendecagon, pendecagram, pendecahedron, quindenary, quindecennial, pentadeca-, pentakaideca-, quindeci-
16 sixteen, base sixteen, hexadecimal, hexakaidecad, hexakaidecagon, hexakaidecagram, hexakaidecahedron, sexdecimal, hexadeca-, hexakaideca-, sexdeci-
17 seventeen, heptadecad, heptadecagon, heptadecagram, heptadecahedron, septendecimal, heptadeca-, heptakaideca-, septendeci-
18 eighteen, eighteen-wheeler, octakaidecad, octakaidecagon, octakaidecagram, octakaidecahedron, octodecicycle, octadeca-, octakaideca-, octodeci-
19 nineteen, decennoval, enneakaidecad, enneakaidecagon, enneakaidecagram, enneakaidecahedron, enneakaideca-, nonadeca-, novemdeci-
20 twenty, base twenty, icosad, icosagon, icosagram, icosahedron, score, vicenary, vicennial, vicesimal, vigenary, vigesimal, icosa-, viginti-
21 twenty-one, icosikaihenad, icosikaihenagon, icosikaihenagram, icosikaihenahedron, henicosa-, icosihena-, icosikaihena-, unviginti-
22 twenty-two, icosikaidigon, icosikaidigram, icosikaidihedron, icosikaidyad, doicosa-, duoviginti-, icosidi-, icosikaidi-,
23 twenty-three, icosikaitriad, icosikaitrigon, icosikaitrigram, icosikaitrihedron, icosikaitri-, icositri-, triicosa-, treviginti-
24 twenty-four, icosikaitetrad, icosikaitetragon, icosikaitetragram, icosikaitetrahedron, icosikaitetra-, icositetra-, quattuorviginti-, tetraicosa-
25 twenty-five, icosikaipentad, icosikaipentagon, icosikaipentagram, icosikaipentahedron, quarter century, icosikaipenta-, icosipenta-, pentaicosa-, quinviginti-
26 twenty-six, icosikaihexad, icosikaihexagon, icosikaihexagram, icosikaihexahedron, hexaicosa-, icosihexa-, icosikaihexa-, sexviginti-
27 twenty-seven, icosikaiheptad, icosikaiheptagon, icosikaiheptagram, icosikaiheptahedron, heptaicosa-, icosihepta-, icosikaihepta-, septenviginti-
28 twenty-eight, icosikaioctad, icosikaioctagon, icosikaioctagram, icosikaioctahedron, icosikaiocta-, icosiocta-, octaicosa-, octoviginti-
29 twenty-nine, icosikaiennead, icosikaienneagon, icosikaienneagram, icosikaienneahedron, icosiennea-, icosikaiennea-, nonaicosa-, novemviginti-
30 thirty, score and ten, triacontad, triacontagon, triacontagram, triacontahedron, tricenary, trigesimal, tricennial, triaconta-, triginta-
31 thirty-one, triacontakaihenad, triacontakaihenagon, triacontakaihenagram, triacontakaihenahedron, hentriaconta-, triacontahena-, triacontakaihena-, untriginta-
32 thirty-two, triacontakaidigon, triacontakaidigram, triacontakaidihedron, triacontakaidyad, dotriaconta-, duotriginta-, triacontadi-, triacontakaidi-
33 thirty-three, triacontakaitriad, triacontakaitrigon, triacontakaitrigram, triacontakaitrihedron, tretriginta-, triacontakaitri-, triacontatri-, tritriaconta-
34 thirty-four, triacontakaitetrad, triacontakaitetragon, triacontakaitetragram, triacontakaitetrahedron, quattuortriginta-, tetratriaconta-, triacontakaitetra-, triacontatetra-
35 thirty-five, triacontakaipentad, triacontakaipentagon, triacontakaipentagram, triacontakaipentahedron, pentatriaconta-, quintriginta-, triacontakaipenta-, triacontapenta-
36 thirty-six, triacontakaihexad, triacontakaihexagon, triacontakaihexagram, triacontakaihexahedron, hexatriaconta-, sextriginta-, triacontahexa-, triacontakaihexa-
37 thirty-seven, triacontakaiheptad, triacontakaiheptagon, triacontakaiheptagram, triacontakaiheptahedron, heptatriaconta-, septentriginta-, triacontahepta-, triacontakaihepta-
38 thirty-eight, triacontakaioctad, triacontakaioctagon, triacontakaioctagram, triacontakaioctahedron, octatriaconta-, octotriginta-, triacontakaiocta-, triacontaocta-
39 thirty-nine, triacontakaiennead, triacontakaienneagon, triacontakaienneagram, triacontakaienneahedron, nonatriaconta-, novemtriginta-, triacontaennea-, triacontakaiennea-
40 forty, quadragenary, quadragesimal, quadricennial, tetracontad, tetracontagon, tetracontagram, tetracontahedron, twoscore, quadraginta-, tetraconta-
41 forty-one, tetracontakaihenad, tetracontakaihenagon, tetracontakaihenagram, tetracontakaihenahedron, hentetraconta-, tetracontahena-, tetracontakaihena-, unquadraginta-
42 forty-two, life, the universe, and everything, tetracontakaidigon, tetracontakaidigram, tetracontakaidihedron, tetracontakaidyad, dotetraconta-, duoquadraginta-, tetracontadi-, tetracontakaidi-
43 forty-three, tetracontakaitriad, tetracontakaitrigon, tetracontakaitrigram, tetracontakaitrihedron, tetracontakaitri-, tetracontatri-, trequadraginta-, tritetraconta-
44 forty-four, tetracontakaitetrad, tetracontakaitetragon, tetracontakaitetragram, tetracontakaitetrahedron, quattuorquadraginta-, tetratetraconta-, tetracontakaitetra-, tetracontatetra-
45 forty-five, tetracontakaipentad, tetracontakaipentagon, tetracontakaipentagram, tetracontakaipentahedron, pentatetraconta-, quinquadraginta-, tetracontakaipenta-, tetracontapenta-
46 forty-six, tetracontakaihexad, tetracontakaihexagon, tetracontakaihexagram, tetracontakaihexahedron, hexatetraconta-, sexquadraginta-, tetracontahexa-, tetracontakaihexa-
47 forty-seven, tetracontakaiheptad, tetracontakaiheptagon, tetracontakaiheptagram, tetracontakaiheptahedron, heptatetraconta-, septenquadraginta-, tetracontahepta-, tetracontakaihepta-
48 forty-eight, tetracontakaioctad, tetracontakaioctagon, tetracontakaioctagram, tetracontakaioctahedron, octatetraconta-, octoquadraginta-, tetracontakaiocta-, tetracontaocta-
49 forty-nine, tetracontakaiennead, tetracontakaienneagon, tetracontakaienneagram, tetracontakaienneahedron, nonatetraconta-, novemquadraginta-, tetracontaennea-, tetracontakaiennea-
50 fifty, half a hundred, half century, pentacontad, pentacontagon, pentacontagram, pentacontahedron, quinquagenary, quinquagesimal, semicentennial, twoscore and ten, pentaconta-, quinquaginta-
51 fifty-one, pentacontakaihenad, pentacontakaihenagon, pentacontakaihenagram, pentacontakaihenahedron, henpentaconta-, pentacontahena-, pentacontakaihena-, unquinquaginta-
52 fifty-two, pentacontakaidigon, pentacontakaidigram, pentacontakaidihedron, pentacontakaidyad, dopentaconta-, duoquinquaginta-, pentacontadi-, pentacontakaidi-
53 fifty-three, pentacontakaitriad, pentacontakaitrigon, pentacontakaitrigram, pentacontakaitrihedron, pentacontakaitri-, pentacontatri-, trequinquaginta-, tripentaconta-
54 fifty-four, pentacontakaitetrad, pentacontakaitetragon, pentacontakaitetragram, pentacontakaitetrahedron, pentacontakaitetra-, pentacontatetra-, quattuorquinquaginta-, tetrapentaconta-
55 fifty-five, pentacontakaipentad, pentacontakaipentagon, pentacontakaipentagram, pentacontakaipentahedron, pentacontakaipenta-, pentacontapenta-, pentapentaconta-, quinquinquaginta-
56 fifty-six, pentacontakaihexad, pentacontakaihexagon, pentacontakaihexagram, pentacontakaihexahedron, hexapentaconta-, pentacontahexa-, pentacontakaihexa-, sexquinquaginta-
57 fifty-seven, pentacontakaiheptad, pentacontakaiheptagon, pentacontakaiheptagram, pentacontakaiheptahedron, heptapentaconta-, pentacontahepta-, pentacontakaihepta-, septenquinquaginta-
58 fifty-eight, pentacontakaioctad, pentacontakaioctagon, pentacontakaioctagram, pentacontakaioctahedron, octapentaconta-, octoquinquaginta-, pentacontakaiocta-, pentacontaocta-
59 fifty-nine, pentacontakaiennead, pentacontakaienneagon, pentacontakaienneagram, pentacontakaienneahedron, nonapentaconta-, pentacontaennea-, pentacontakaiennea-, novemquinquaginta-
60 sixty, hexacontad, hexacontagon, hexacontagram, hexacontahedron, sexagenary, sexagesimal, threescore, hexaconta-, sexaginta-
61 sixty-one, hexacontakaihenad, hexacontakaihenagon, hexacontakaihenagram, hexacontakaihenahedron, henhexaconta-, hexacontahena-, hexacontakaihena-, unsexaginta-
62 sixty-two, hexacontakaidigon, hexacontakaidigram, hexacontakaidihedron, hexacontakaidyad, dohexaconta-, duosexaginta-, hexacontadi-, hexacontakaidi-
63 sixty-three, hexacontakaitriad, hexacontakaitrigon, hexacontakaitrigram, hexacontakaitrihedron, hexacontakaitri-, hexacontatri-, tresexaginta-, trihexaconta-
64 sixty-four, hexacontakaitetrad, hexacontakaitetragon, hexacontakaitetragram, hexacontakaitetrahedron, hexacontakaitetra-, hexacontatetra-, quattuorsexaginta-, tetrahexaconta-
65 sixty-five, hexacontakaipentad, hexacontakaipentagon, hexacontakaipentagram, hexacontakaipentahedron, hexacontakaipenta-, hexacontapenta-, pentahexaconta-, quinsexaginta-
66 sixty-six, hexacontakaihexad, hexacontakaihexagon, hexacontakaihexagram, hexacontakaihexahedron, hexacontahexa-, hexacontakaihexa-, hexahexaconta-, sexsexaginta-
67 sixty-seven, hexacontakaiheptad, hexacontakaiheptagon, hexacontakaiheptagram, hexacontakaiheptahedron, heptahexaconta-, hexacontahepta-, hexacontakaihepta-, septensexaginta-
68 sixty-eight, hexacontakaioctad, hexacontakaioctagon, hexacontakaioctagram, hexacontakaioctahedron, hexacontakaiocta-, hexacontaocta-, octahexaconta-, octosexaginta-
69 sixty-nine, hexacontakaiennead, hexacontakaienneagon, hexacontakaienneagram, hexacontakaienneahedron, hexacontaennea-, hexacontakaiennea-, nonahexaconta-, novemsexaginta-
70 seventy, heptacontad, heptacontagon, heptacontagram, heptacontahedron, septuagenary, septuagesimal, threescore and ten, heptaconta-, septuaginta-
71 seventy-one, heptacontakaihenad, heptacontakaihenagon, heptacontakaihenagram, heptacontakaihenahedron, henheptaconta-, heptacontahena-, heptacontakaihena-, unseptuaginta-
72 seventy-two, heptacontakaidigon, heptacontakaidigram, heptacontakaidihedron, heptacontakaidyad, doheptaconta-, duoseptuaginta-, heptacontadi-, heptacontakaidi-
73 seventy-three, heptacontakaitriad, heptacontakaitrigon, heptacontakaitrigram, heptacontakaitrihedron, heptacontakaitri-, heptacontatri-, treseptuaginta-, triheptaconta-
74 seventy-four, heptacontakaitetrad, heptacontakaitetragon, heptacontakaitetragram, heptacontakaitetrahedron, heptacontakaitetra-, heptacontatetra-, quattuorseptuaginta-, tetraheptaconta-
75 seventy-five, heptacontakaipentad, heptacontakaipentagon, heptacontakaipentagram, heptacontakaipentahedron, heptacontakaipenta-, heptacontapenta-, pentaheptaconta-, quinseptuaginta-
76 seventy-six, heptacontakaihexad, heptacontakaihexagon, heptacontakaihexagram, heptacontakaihexahedron, heptacontahexa-, heptacontakaihexa-, hexaheptaconta-, sexseptuaginta-
77 seventy-seven, heptacontakaiheptad, heptacontakaiheptagon, heptacontakaiheptagram, heptacontakaiheptahedron, heptacontahepta-, heptacontakaihepta-, heptaheptaconta-, septenseptuaginta-
78 seventy-eight, heptacontakaioctad, heptacontakaioctagon, heptacontakaioctagram, heptacontakaioctahedron, heptacontakaiocta-, heptacontaocta-, octaheptaconta-, octoseptuaginta-
79 seventy-nine, heptacontakaiennead, heptacontakaienneagon, heptacontakaienneagram, heptacontakaienneahedron, heptacontaennea-, heptacontakaiennea-, nonaheptaconta-, novemseptuaginta-
80 eighty, fourscore, octacontad, octacontagon, octacontagram, octacontahedron, octogenary, octogesimal, octaconta-, octoginta-
81 eighty-one, octacontakaihenad, octacontakaihenagon, octacontakaihenagram, octacontakaihenahedron, henoctaconta-, octacontahena-, octacontakaihena-, unoctoginta-
82 eighty-two, octacontakaidigon, octacontakaidigram, octacontakaidihedron, octacontakaidyad, dooctaconta-, duooctoginta-, octacontadi-, octacontakaidi-
83 eighty-three, octacontakaitriad, octacontakaitrigon, octacontakaitrigram, octacontakaitrihedron, octacontakaitri-, octacontatri-, treoctoginta-, trioctaconta-
84 eighty-four, octacontakaitetrad, octacontakaitetragon, octacontakaitetragram, octacontakaitetrahedron, octacontakaitetra-, octacontatetra-, quattuoroctoginta-, tetraoctaconta-
85 eighty-five, octacontakaipentad, octacontakaipentagon, octacontakaipentagram, octacontakaipentahedron, octacontakaipenta-, octacontapenta-, pentaoctaconta-, quinoctoginta-
86 eighty-six, octacontakaihexad, octacontakaihexagon, octacontakaihexagram, octacontakaihexahedron, hexaoctaconta-, octacontahexa-, octacontakaihexa-, sexoctoginta-
87 eighty-seven, octacontakaiheptad, octacontakaiheptagon, octacontakaiheptagram, octacontakaiheptahedron, heptaoctaconta-, octacontahepta-, octacontakaihepta-, septoctoginta-
88 eighty-eight, octacontakaioctad, octacontakaioctagon, octacontakaioctagram, octacontakaioctahedron, octacontakaiocta-, octacontaocta-, octaoctaconta-, octooctoginta-
89 eighty-nine, octacontakaiennead, octacontakaienneagon, octacontakaienneagram, octacontakaienneahedron, octacontaennea-, octacontakaiennea-, nonaoctaconta-, novemoctoginta-
90 ninety, enneacontad, enneacontagon, enneacontagram, enneacontahedron, fourscore and ten, nonagenary, nonagesimal, enneaconta-, nonaconta-, nonaginta-
91 ninety-one, enneacontakaihenad, enneacontakaihenagon, enneacontakaihenagram, enneacontakaihenahedron, enneacontahena-, enneacontakaihena-, hennonaconta-, unnonaginta-
92 ninety-two, enneacontakaidigon, enneacontakaidigram, enneacontakaidihedron, enneacontakaidyad, dononaconta-, duononaginta-, enneacontadi-, enneacontakaidi-
93 ninety-three, enneacontakaitriad, enneacontakaitrigon, enneacontakaitrigram, enneacontakaitrihedron, enneacontakaitri-, enneacontatri-, trinonaconta-, trenonaginta-
94 ninety-four, enneacontakaitetrad, enneacontakaitetragon, enneacontakaitetragram, enneacontakaitetrahedron, enneacontakaitetra-, enneacontatetra-, quattuornonaginta-, tetranonaconta-
95 ninety-five, enneacontakaipentad, enneacontakaipentagon, enneacontakaipentagram, enneacontakaipentahedron, enneacontakaipenta-, enneacontapenta-, pentanonaconta-, quinnonaginta-
96 ninety-six, enneacontakaihexad, enneacontakaihexagon, enneacontakaihexagram, enneacontakaihexahedron, enneacontahexa-, enneacontakaihexa-, hexanonaconta-, sexnonaginta-
97 ninety-seven, enneacontakaiheptad, enneacontakaiheptagon, enneacontakaiheptagram, enneacontakaiheptahedron, enneacontahepta-, enneacontakaihepta-, heptanonaconta-, septennonaginta-
98 ninety-eight, enneacontakaioctad, enneacontakaioctagon, enneacontakaioctagram, enneacontakaioctahedron, enneacontakaiocta-, enneacontaocta-, octanonaconta-, octononaginta-
99 ninety-nine, enneacontakaiennead, enneacontakaienneagon, enneacontakaienneagram, enneacontakaienneahedron, enneacontaennea-, enneacontakaiennea-, nonanonaconta-, novemnonaginta-
100 one hundred, centenary, centennial, centennium, centesimal, centigrade, centipede, centurion, century, hectad, hectogon, hectogram, hectohedron, hundred, hundreds, hundredweight, centi-, hecato-, hecta-, hecto-, h-
120 one hundred twenty, cenvigesimal
144 one hundred forty-four, gross
150 one hundred fifty, sesquicentenary, sesquicentennial, sesquicentennium
180 one hundred eighty, cenoctogesimal
200 two hundred, bicentenary, bicentennial, bicentennium, dicta-
240 two hundred forty, duocenquadragesimal
256 two hundred fifty-six, duocensexquinquagesimal
300 three hundred, tercentenary, tercentennial, tricentenary, tricentennial, tricentennium,, tricta-
360 three hundred sixty, trecensexagesimal
400 four hundred, quadricentenary, quadricentennial, quatercentenary, quattuorcentenary, quattuorcentennial, quattuorcentennium, tetracta-
500 five hundred, quincentennial, quinquacentenary, quinquacentennial, quinquacentennium, pentacta-
600 six hundred, sexacentenary, sexacentennial, sexacentennium, hexacta-
700 seven hundred, septuacentenary, septuacentennial, septuacentennium, heptacta-
720 seven hundred twenty, septuacenvigesimal
800 eight hundred, octocentenary, octocentennial, octocentennium, octacta-
900 nine hundred, novemcentenary, novemcentennial, novemcentennium, nonacta-
1,000 one thousand, chiliad, chiliagon, chiliahedron, mile, millenary, millennial, millennium, millesimal, millipede, thousand, thousands, chilia-, kilia-, kilo-, mille-, milli-, k-
1,024 one thousand, twenty-four, kibin, kibinal, kilobinary, kibi-, Ki-
1,728 one thousand, seven hundred twenty-eight, grand gross
2,000 two thousand, bimillennial, bimillennium, dilia-
3,000 three thousand, trimillennial, trilia-
4,000 four thousand, quadrimillennial, tetralia-
4,096 four thousand, ninety-six, quadrakibinal
5,000 five thousand, pentalia-
6,000 six thousand, hexalia-
7,000 seven thousand, heptalia-
8,000 eight thousand, octalia-
9,000 nine thousand, nonalia-
10,000 ten thousand, myriad, ten-thousands, myria-
65,536 sixty-five thousand, five hundred thirty-six, quattuorsexagintikibinal
100,000 one hundred thousand, lac, lakh, hundred-thousands
1,000,000 one million, million, millions, mega-, M-
1,048,576 one million, forty-eight thousand, five hundred seventy-six, mebin, megabinary, mebi-, Mi-
10,000,000 ten million, crore, ten-millions
100,000,000 one hundred million, hundred-millions, myriamyriad
1.000 000E+09 one billion (American System), one thousand million (Chuquet System), one milliard (Modified Chuquet System), milliard, giga-, G-
1.073 742E+09 one billion, seventy-three million, seven hundred forty-one thousand, eight hundred twenty-four (American System), one thousand seventy-three million, seven hundred forty-one thousand eight hundred twenty-four (Chuquet System), one milliard, seventy-three million, seven hundred forty-one thousand, eight hundred twenty-four (Modified Chuquet System), gibin, gigabinary, gibi-, Gi-
1.000 000E+12 one trillion (American System), one billion (Chuquet System & Modified Chuquet System), tera-, T-
1.099 512E+12 one trillion, ninety-nine billion, five hundred eleven million, six hundred twenty-seven thousand, seven hundred seventy-six (American System), one billion, ninety-nine thousand five hundred eleven million, six hundred twenty-seven thousand seven hundred seventy-six (Chuquet System), one billion, ninety-nine milliard, five hundred eleven million, six hundred twenty-seven thousand, seven hundred seventy-six (Modified Chuquet System), tebin, terabinary, tebi-, Ti-
1.000 000E+15 one quadrillion (American System), one thousand billion (Chuquet System), one billiard (Modified Chuquet System), billiard, peta-, P-
1.125 900E+15 one quadrillion, one hundred twenty-five trillion, eight hundred ninety-nine billion, nine hundred six million, eight hundred forty-two thousand, six hundred twenty-four (American System), one thousand one hundred twenty-five billion, eight hundred ninety-nine thousand nine hundred six million, eight hundred forty-two thousand six hundred twenty-four (Chuquet System), one billiard, one hundred twenty-five billion, eight hundred ninety-nine milliard, nine hundred six million, eight hundred forty-two thousand, six hundred twenty-four (Modified Chuquet System), pebin, petabinary, pebi-, Pi-
1.000 000E+18 one quintillion (American System), one trillion (Chuquet System & Modified Chuquet System), exa-, E-
1.152 922E+18 one quintillion, one hundred fifty-two quadrillion, nine hundred twenty-one trillion, five hundred four billion, six hundred six million, eight hundred forty-six thousand, nine hundred seventy-six (American System), one trillion, one hundred fifty-two thousand nine hundred twenty-one billion, five hundred four thousand six hundred six million, eight hundred forty-six thousand nine hundred seventy-six (Chuquet System), one trillion, one hundred fifty-two billiard, nine hundred twenty-one billion, five hundred four milliard, six hundred six million, eight hundred forty-six thousand, nine hundred seventy-six (Modified Chuquet System), exabinary, exbin, exbi-, Ei-
1.000 000E+21 one sextillion (American System), one thousand trillion (Chuquet System), one trilliard (Modified Chuquet System), trilliard, zetta-, Z-
1.000 000E+24 one septillion (American System), one quadrillion (Chuquet System & Modified Chuquet System), yotta-, Y-
1.000 000E+27 one octillion (American System), one thousand quadrillion (Chuquet System), one quadrilliard (Modified Chuquet System), quadrilliard, nea-
1.000 000E+30 one nonillion (American System), one quintillion (Chuquet System & Modified Chuquet System), dea-
1.000 000E+33 one decillion (American System), one thousand quintillion (Chuquet System), one quintilliard (Modified Chuquet System), quintilliard, una-
1E+100 ten duotrigintillion (American System), ten thousand sexdecillion (Chuquet System), ten sexdecilliard (Modified Chuquet System), googol
1E+(1E+100) googolplex
other large numbers billion, trillion, quadrillion, quintillion, sextillion, septillion, octillion, nonillion, decillion, undecillion, duodecillion, tredecillion, quattuordecillion, quindecillion, sexdecillion, septendecillion, octodecillion, novemdecillion, vigintillion, unvigintillion, duovigintillion, trevigintillion, quattuorvigintillion, quinvigintillion, sexvigintillion, septenvigintillion, octovigintillion, novemvigintillion, trigintillion, untrigintillion, duotrigintillion, tretrigintillion, quattuortrigintillion, quintrigintillion, sextrigintillion, septentrigintillion, octotrigintillion, novemtrigintillion, quadragintillion, unquadragintillion, duoquadragintillion, trequadragintillion, quattuorquadragintillion, quinquadragintillion, sexquadragintillion, septenquadragintillion, octoquadragintillion, novemquadragintillion, quinquagintillion, unquinquagintillion, duoquinquagintillion, trequinquagintillion, quattuorquinquagintillion, quinquinquagintillion, sexquinquagintillion, septenquinquagintillion, octoquinquagintillion, novemquinquagintillion, sexagintillion, unsexagintillion, duosexagintillion, tresexagintillion, quattuorsexagintillion, quinsexagintillion, sexsexagintillion, septensexagintillion, octosexagintillion, novemsexagintillion, septuagintillion, unseptuagintillion, duoseptuagintillion, treseptuagintillion, quattuorseptuagintillion, quinseptuagintillion, sexseptuagintillion, septenseptuagintillion, octoseptuagintillion, novemseptuagintillion, octogintillion, unoctogintillion, duooctogintillion, treoctogintillion, quattuoroctogintillion, quinoctogintillion, sexoctogintillion, septoctogintillion, octooctogintillion, novemoctogintillion, nonagintillion, unnonagintillion, duononagintillion, trenonagintillion, quattuornonagintillion, quinnonagintillion, sexnonagintillion, septennonagintillion, octononagintillion, novemnonagintillion, centillion

Ordinal Numbers

number expressions
1st first, primary, ace, first aid, first class, first cousin, first cousin once removed, first cousin thrice removed, first cousin twice removed, First Nation, first person, first-rate, first string, first-stringer, First World, firstborn, firsthand, firstling, initial, monogram, original, premier, primal, primate, prime, prince, princely, princess
2nd second, secondary, second banana, second cousin, second cousin once removed, second cousin twice removed, Second World
3rd third, tertiary, third cousin, third cousin once removed, Third World
4th fourth, quaternary, fourth cousin, Fourth World
5th fifth, quinary, fifth cousin, fifth element, fifth essence, quintessence, quintessential
6th sixth, senary
7th seventh, septenary, September
8th eighth, octonary, October
9th ninth, nonary, November
10th tenth, denary, December
11th eleventh, undenary
12th twelfth, duodenary
13th thirteenth
14th fourteenth
15th fifteenth
16th sixteenth
17th seventeenth
18th eighteenth
19th nineteenth
20th twentieth
21st twenty-first
22nd twenty-second
23rd twenty-third
24th twenty-fourth
25th twenty-fifth
26th twenty-sixth
27th twenty-seventh
28th twenty-eighth
29th twenty-ninth
30th thirtieth
31st thirty-first
32nd thirty-second
33rd thirty-third
34th thirty-fourth
35th thirty-fifth
36th thirty-sixth
37th thirty-seventh
38th thirty-eighth
39th thirty-ninth
40th fortieth
41st forty-first
42nd forty-second
43rd forty-third
44th forty-fourth
45th forty-fifth
46th forty-sixth
47th forty-seventh
48th forty-eighth
49th forty-ninth
50th fiftieth, Pentecost
51st fifty-first
52nd fifty-second
53rd fifty-third
54th fifty-fourth
55th fifty-fifth
56th fifty-sixth
57th fifty-seventh
58th fifty-eighth
59th fifty-ninth
60th sixtieth
61st sixty-first
62nd sixty-second
63rd sixty-third
64th sixty-fourth
65th sixty-fifth
66th sixty-sixth
67th sixty-seventh
68th sixty-eighth
69th sixty-ninth
70th seventieth
71st seventy-first
72nd seventy-second
73rd seventy-third
74th seventy-fourth
75th seventy-fifth
76th seventy-sixth
77th seventy-seventh
78th seventy-eighth
79th seventy-ninth
80th eightieth
81st eighty-first
82nd eighty-second
83rd eighty-third
84th eighty-fourth
85th eighty-fifth
86th eighty-sixth
87th eighty-seventh
88th eighty-eighth
89th eighty-ninth
90th ninetieth
91st ninety-first
92nd ninety-second
93rd ninety-third
94th ninety-fourth
95th ninety-fifth
96th ninety-sixth
97th ninety-seventh
98th ninety-eighth
99th ninety-ninth
100th one hundredth, hundredth
1,000th one thousandth, thousandth
10,000th ten thousandth
100,000th one hundred thousandth
1,000,000th one millionth, millionth
10,000,000th ten millionth
100,000,000th one hundred millionth

Noninteger Real Numbers

number expressions
1.000 000E-33 one one-decillionth (American System), one one-thousand-quintillionth (Chuquet System), one one-quintilliardth (Modified Chuquet System), quintilliardth, revo-
1.000 000E-30 one one-nonillionth (American System), one one-quintillionth (Chuquet System & Modified Chuquet System), tredo-
1.000 000E-27 one one-octillionth (American System), one one-thousand-quadrillionth (Chuquet System), one one-quadrilliardth (Modified Chuquet System), quadrilliardth, syto-
1.000 000E-24 one one-septillionth (American System), one one-quadrillionth (Chuquet System & Modified Chuquet System), yocto-, y-
1.000 000E-21 one one-sextillionth (American System), one one-thousand-trillionth (Chuquet System), one one-trilliardth (Modified Chuquet System), trilliardth, zepto-, z-
1.000 000E-18 one one-quintillionth (American System), one one-trillionth (Chuquet System & Modified Chuquet System), atto-, a-
1.000 000E-15 one one-quadrillionth (American System), one one-thousand-billionth (Chuquet System), one one-billiardth (Modified Chuquet System), billiardth, parts per quadrillion, ppq, femto-, f-
1.000 000E-12 one one-trillionth (American System), one one-billionth (Chuquet System & Modified Chuquet System), decibel, parts per trillion, ppt, pico-, dB, p-
1.000 000E-09 one one-billionth (American System), one one-thousand-millionth (Chuquet System), one one-milliardth (Modified Chuquet System), milliardth, parts per billion, ppb, nano-, n-
1.000 000E-08 one one-hundred-millionth (1/100,000,000 = 0.000 000 010), hundred-millionths, one-hundred-millionth
1.000 000E-07 one ten-millionth (1/10,000,000 = 0.000 000 100), ten-millionth, ten-millionths
7.716 049E-07 one one-million-two-hundred-ninety-six-thousandth (1/1,296,000), second, -″
1.000 000E-06 one one-millionth (1/1,000,000 = 0.000 001), millionth, millionths, one-millionth, parts per million, ppm, per million, micro-, μ-
1.000 000E-05 one one-hundred-thousandth (1/100,000 = 0.000 010), hundred-thousandths, per hundred thousand, one-hundred-thousandth
1.157 407E-05 one eighty-six-thousand-four-hundredth (1/86,400), second
4.629 830E-05 one twenty-one-thousand-six-hundredth (1/21,600), minute, -′
1.000 000E-04 one ten-thousandth (1/10,000 = 0.000 100), per ten thousand, ten-thousandth, ten-thousandths
1.562 500E-04 one six-thousand-four-hundredth (1/6,400), one sixty-four-hundredth, mil
2.777 778E-04 one three-thousand-six-hundredth (1/3,600), one thirty-six-hundredth, second, -″
6.944 444E-04 one one-thousand-four-hundred-fortieth (1/1,440), minute
0.001 000 000 one one-thousandth (1/1,000 = 0.001), mil, mill, one-thousandth, parts per thousand, ppt, per mil, per mill, per mille, -‰, per thousand, thousandth, thousandths, milli-, m-
0.002 500 000 one four-hundredth (1/400), grade
0.002 777 778 one three-hundred-sixtieth (1/360), degree, -°
0.010 000 000 one one-hundredth (1/100 = 0.01), one percent (1%), cent, hundredth, hundredths, one-hundredth, per centum, percent, -%, percentage, percentile, per hundred, centi-, c-
0.010 416 667 one ninety-sixth (1/96), ninety-sixth
0.011 111 111 one ninetieth (1/90), ninetieth
0.012 500 000 one eightieth (1/80), eightieth
0.013 888 889 one seventy-second (1/72), seventy-second
0.015 625 000 one sixty-fourth (1/64), sexagesimo-quarto, sixty-fourmo, sixty-fourth, 64mo, 64°
0.016 666 667 one sixtieth (1/60), minute, sixtieth, -′
0.020 000 000 one fiftieth (1/50), two one-hundredths (0.02), two percent (2%), fiftieth
0.020 833 333 one forty-eighth (1/48), forty-eightmo, forty-eighth, quadragesimo-octavo, 48mo, 48°
0.025 000 000 one fortieth (1/40), twenty-five one-thousandths (0.025), fortieth
0.027 777 778 one thirty-sixth (1/36), thirty-sixth
0.031 250 000 one thirty-second (1/32), thirty-twomo, thirty-second, tricesimo-secundo, 32mo, 32°
0.033 333 333 one thirtieth (1/30), thirtieth
0.040 000 000 one twenty-fifth (1/25), four one-hundredths (0.04), four percent (4%), twenty-fifth
0.041 666 667 one twenty-fourth (1/24), hour, twenty-fourmo, twenty-fourth, vicesimo-quarto, 24mo, 24°
0.050 000 000 one twentieth (1/20), five one-hundredths (0.05), five percent (5%), twentieth
0.052 631 579 one nineteenth (1/19), nineteenth
0.055 555 556 one eighteenth (1/18), eighteenmo, eighteenth, octodecimo, 18mo, 18°
0.058 823 529 one seventeenth (1/17), seventeenth
0.062 500 000 one sixteenth (1/16), sextodecimo, sixteenmo, sixteenth, 16mo, 16°
0.066 666 667 one fifteenth (1/15), fifteenth
0.071 428 571 one fourteenth (1/14), fourteenth
0.076 923 077 one thirteenth (1/13), thirteenth
0.083 333 333 one twelfth (1/12), duodecimo, twelfth, twelvemo, 12mo, 12°
0.090 909 091 one eleventh (1/11), eleventh
0.100 000 000 one tenth (1/10 = 0.1), ten percent (10%), decile, decimate, decimation, tenth, tenths, tithe, deci-, d-
0.111 111 111 one ninth (1/9), ninth
0.125 000 000 one eighth (1/8), bit, eighth, octavo, 8vo, 8°
0.142 857 143 one seventh (1/7), seventh
0.166 666 667 one sixth (1/6), sexto, sixth, 6to, 6°
0.200 000 000 one fifth (1/5), two tenths (0.2), twenty percent (20%), fifth, quintile
0.250 000 000 one fourth (1/4), one quarter (1/4), twenty-five one-hundredths (0.25), twenty-five percent (25%), fourth, quart, quarter, quarterly, quartile, quarto, two-bit, two bits, 4to, 4°
0.333 333 333 one third (1/3), third
0.500 000 000 one half (1/2), five tenths (0.5), fifty percent (50%), folio, half, halve, halves, moiety, biannual, semi, semiannual, semidiurnal, semimonthly, semitrailer, hemi-, demi-, semi-
0.577 215 665 Euler's Constant, Euler-Mascheroni Constant, γ
0.666 666 667 two thirds (2/3)
0.750 000 000 three fourths (3/4), three quarters (3/4), seventy-five percent (75%)
0.915 965 594 Catalan's Constant, G
1.202 056 903 Apéry's Constant, ζ(3)
1.258 925 412 decibel, dB, (10)0.1
1.414 213 562 Pythagoras' Constant, (2)0.5
1.500 000 000 one and one half (1½), one and five tenths (1.5), three halves (3/2), sesquipedalian, sesqui-
1.618 033 989 Golden Ratio, Sacred Ratio, φ
2.718 281 828 Napier's Constant, natural logarithmic base, e
3.141 592 654 Archimedes' Constant, π

Other Numbers

number expressions
i imaginary unit, i, j
1/∞ infinitesimality, infinitesimal, infinitesimally
∞ infinity, incalculable, infinite, infinitely, innumerable, innumerous, uncountable, unnumberable, ∞

Logical Values

value expressions
FALSE false, negative, nil, no, null, zero, F, N
TRUE affirmative, one, positive, true, yes, T, Y

Ranges of Real Numbers

range expressions
x < 0 negative, minus, −
x ≤ 0 nonpositive
x ≠ 0 nonzero, some
0 ≤ x nonnegative
0 < x positive, plus, +
x < 50% minority
50% < x majority
1 < x multiple, plural, plurality, multi-, poly-
2 ≤ x ≤ 3 couple-three
2 < x ≤ 12 several
9 ≤ x < 13 preteen
10 ≤ x < 20 tens
13 ≤ x < 20 teen, teenage, teenager
20 ≤ x < 30 twenties, twenty-something
30 ≤ x < 40 thirties, thirty-something
40 ≤ x < 50 forties, forty-something, quadragenarian
50 ≤ x < 60 fifties, fifty-something, quinquagenarian
60 ≤ x < 70 sixties, sixty-something, sexagenarian
70 ≤ x < 80 seventies, septuagenarian
80 ≤ x < 90 eighties, octogenarian
90 ≤ x < 100 nineties, nonagenarian
100 ≤ x centenarian
110 ≤ x supercentenarian