jillion

jil·lion
J8I1L1L1I1O1N1
/ˈd͡ʒɪljən/

noun

An unspecified large number (of).

Similar
millionbilliontrillionzilliongazillionbazillion
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Meanings

nounjillion (plural jillions)

plural jillions

  1. excessiveslangAn unspecified large number (of).

    “One jillion dollars!”

    1999 April 27, Patric M. Verrone, “A Fishful of Dollars” (11:00 from the start), in Futurama, season 1, episode 6 (television episode), spoken by Philip J. Fry (Billy West), United States, via FOX, 1ACV06
    1 more example

    I know this has been asked a jillion times, but news server displays only one days^([sic]) worth of posts..

    1995 December 29, Kreg Harrison, “11th hour- lecher where??”, in comp.sys.ibm.pc.games.adventure (Usenet)

Synonyms & antonyms

nouna very large indefinite number (usually hyperbole)

Similar
millionbilliontrillionzilliongazillionbazillion
Broader
large indefinite quantitylarge indefinite amount
Also see
bazillionbilliongazillionmillionquadrilliontrillionzillion

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

See -illion.

Full word history & related roots →

Rhymes & wordplay

Rhymes with jillion

millionbillionBrazilianpaviliontrilliongillianzillionvermilionJillianabelianMaximilianCastiliangazillionquadrillionpillionquintillioncentilliondecillionduodecillionduotrigintillionduovigintilliongilliongodzilliongorillion
All rhymes →

Sounds the same

gillionGillianJillian stripped-by-parse_pron_post_template_fn
Cite this entry
APA

jillion. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/jillion

MLA

“jillion.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/jillion. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “jillion,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/jillion.

Source: jillion on Wiktionary, CC BY-SA 4.0.