big O

== English == === Pronunciation === === Noun === big O (plural big Os) (mathematical analysis) Upper bound function; see big O notation. (slang, usually preceded by "the") Orgasm. 2025 October 21, John Matthew Fox, “9 Writing Strategies of Authors in the Top 1%”[2], Bookfox Think of the faked O in Harry Met Sally, what she did in that restaurant. (slang) Opium. Synonyms: see Thesaurus:opium === Further reading === “big O n.”, in Green’s Dictionary of Slang, Jonathon Green, 2016–present. Eric Partridge (2005), “Big O”, in Tom Dalzell and Terry Victor, editors, The New Partridge Dictionary of Slang and Unconventional English, volume 1 (A–I), London; New York, N.Y.: Routledge, →ISBN, page 151. === Anagrams === Gobi, Igbo, biog, biog., gobi