noun · num · 5 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.
US:/kwɑˈdɹɪl.i.ən/
US:/kwɑˈdɹɪl.jən/
Australian, Scotland:/kwɔˈdɹɪl.jən/
New-Zealand:/kwɔˈdɹɘl.jɘn/
General-South-African, Ireland, UK:/kwɒˈdɹɪl.jən/
US:Recorded audio is listed in the source snapshot.
Australia:Recorded audio is listed in the source snapshot.
rhymes with -ɪljən
1
noun
Meaning 1
Any very large number, exceeding normal description.
Definition source: English Wiktionary via Wiktextract
Usage: excessive, figuratively, slang
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
num
Meaning 2
A thousand trillion (logic: 1,000 × 1,0004): 1 followed by fifteen zeros, 1015.
Definition source: English Wiktionary via Wiktextract
Usage: Australian, British, US, modern
Qualifier: short scale
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
num
Meaning 3
A million trillion (logic: 1,000,0004): 1 followed by twenty-four zeros, 1024.
Definition source: English Wiktionary via Wiktextract
Usage: Australia, UK, dated
Qualifier: long scale
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
4
noun
Meaning 4
the number that is represented as a one followed by 15 zeros
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
Broader terms: large integer
5
noun
Meaning 5
the number that is represented as a one followed by 24 zeros
Definition source: Princeton WordNet 3.0
Examples
in England they call a septillion a quadrillion
Meaning relationships
Synonyms: none provided
Antonyms: none provided
Broader terms: large integer
History
Etymology
From French quadrillion, from quadri- (“four”) + -illion. By surface analysis, quadr- + -illion.
Across languages
Translations
64 source translations are retained for this English entry.
French:
milliard
— any very large number
French:
milliards
— any very large number
French:
million
— any very large number
French:
millions
— any very large number
Armenian:
կվադրիլիոն
(kvadrilion)
— a thousand trillion (1,000,000,000,000,000); a billiard
Armenian:
հազար երկիլիոն
(hazar erkilion)
— a thousand trillion (1,000,000,000,000,000); a billiard
Chinese Mandarin:
千万亿
— a thousand trillion (1,000,000,000,000,000); a billiard
Czech:
biliarda
— a thousand trillion (1,000,000,000,000,000); a billiard
Dutch:
biljard
— a thousand trillion (1,000,000,000,000,000); a billiard
Esperanto:
biliardo
— a thousand trillion (1,000,000,000,000,000); a billiard
Estonian:
biljard
— a thousand trillion (1,000,000,000,000,000); a billiard
Finnish:
biljardi
— a thousand trillion (1,000,000,000,000,000); a billiard
French:
billiard
— a thousand trillion (1,000,000,000,000,000); a billiard
French:
million de milliards
— a thousand trillion (1,000,000,000,000,000); a billiard
German:
Billiarde
— a thousand trillion (1,000,000,000,000,000); a billiard
Greek:
τετρακισεκατομμύριο
(tetrakisekatommýrio)
— a thousand trillion (1,000,000,000,000,000); a billiard
Hungarian:
billiárd
— a thousand trillion (1,000,000,000,000,000); a billiard
Hungarian:
ezerbillió
— a thousand trillion (1,000,000,000,000,000); a billiard
Japanese:
千兆
(senchō)
— a thousand trillion (1,000,000,000,000,000); a billiard
Kalmyk:
тунмл
(tunml)
— a thousand trillion (1,000,000,000,000,000); a billiard
Korean:
천조
(cheonjo)
— a thousand trillion (1,000,000,000,000,000); a billiard
Kyrgyz:
санчоо
(sancoo)
— a thousand trillion (1,000,000,000,000,000); a billiard
Kyrgyz:
тунмал
(tunmal)
— a thousand trillion (1,000,000,000,000,000); a billiard
Malay:
kuadrilion
— a thousand trillion (1,000,000,000,000,000); a billiard
Maltese:
kwadriljun
— a thousand trillion (1,000,000,000,000,000); a billiard
Maltese:
biljard
— a thousand trillion (1,000,000,000,000,000); a billiard
Manchu:
ᠮᡳᠩᡤᠠᠨ ᠰᠠᠵᠠ
(minggan saja)
— a thousand trillion (1,000,000,000,000,000); a billiard
Mongolian:
тунамал
(tunamal)
— a thousand trillion (1,000,000,000,000,000); a billiard
Norwegian Nynorsk:
biljard
— a thousand trillion (1,000,000,000,000,000); a billiard
Persian:
کوادریلیون
(kuâdrilion)
— a thousand trillion (1,000,000,000,000,000); a billiard
Polish:
biliard
— a thousand trillion (1,000,000,000,000,000); a billiard
Portuguese:
mil biliões
— a thousand trillion (1,000,000,000,000,000); a billiard
Portuguese:
quadrilhão
— a thousand trillion (1,000,000,000,000,000); a billiard
Portuguese:
quatrilhão
— a thousand trillion (1,000,000,000,000,000); a billiard
Romanian:
biliard
— a thousand trillion (1,000,000,000,000,000); a billiard
Russian:
квадриллио́н
(kvadrillión)
— a thousand trillion (1,000,000,000,000,000); a billiard
Sanskrit:
अन्त्य
(antya)
— a thousand trillion (1,000,000,000,000,000); a billiard
Spanish:
cuatrillón
— a thousand trillion (1,000,000,000,000,000); a billiard
Spanish:
mil billones
— a thousand trillion (1,000,000,000,000,000); a billiard
Swedish:
biljard
— a thousand trillion (1,000,000,000,000,000); a billiard
Turkish:
katrilyon
— a thousand trillion (1,000,000,000,000,000); a billiard
Turkish:
bilyar
— a thousand trillion (1,000,000,000,000,000); a billiard
Vietnamese:
triệu tỷ
— a thousand trillion (1,000,000,000,000,000); a billiard
Welsh:
mil biliwn
— a thousand trillion (1,000,000,000,000,000); a billiard
Welsh:
cwadriliwn
— a thousand trillion (1,000,000,000,000,000); a billiard
Armenian:
քառիլիոն
(kʻaṙilion)
— a million trillion, 1024 — see also septillion
Catalan:
quadrilió
— a million trillion, 1024 — see also septillion
Dutch:
quadriljoen
— a million trillion, 1024 — see also septillion
Esperanto:
kvariliono
— a million trillion, 1024 — see also septillion
Estonian:
septiljon
— a million trillion, 1024 — see also septillion
Finnish:
kvadriljoona
— a million trillion, 1024 — see also septillion
French:
quadrillion
— a million trillion, 1024 — see also septillion
German:
Quadrillion
— a million trillion, 1024 — see also septillion
Greek:
επτάκις εκατομμύριο
(eptákis ekatommýrio)
— a million trillion, 1024 — see also septillion
Japanese:
一秭
(isshi)
— a million trillion, 1024 — see also septillion
Manchu:
ᡩᡠᠩᡧᡠᠨ
(dungšun)
— a million trillion, 1024 — see also septillion
Polish:
kwadrylion
— a million trillion, 1024 — see also septillion
Portuguese:
quadrilião m quatrilião
— a million trillion, 1024 — see also septillion
Portuguese:
septilhão
— a million trillion, 1024 — see also septillion
Romanian:
cvadrilion
— a million trillion, 1024 — see also septillion
Russian:
септиллио́н
(septillión)
— a million trillion, 1024 — see also septillion
Spanish:
cuatrillón
— a million trillion, 1024 — see also septillion
Swedish:
kvadriljon
— a million trillion, 1024 — see also septillion
Vietnamese:
triệu tỷ tỷ
— a million trillion, 1024 — see also septillion