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big O

Noun CEFR B2

Definitions

  1. Upper bound function; see big O notation.
  2. Orgasm.
    slang
  3. Opium.
    slang

Examples

“Various sections of the brain are activated during the Big O, including the limbic system.”
“2025 October 21, John Matthew Fox, “9 Writing Strategies of Authors in the Top 1%”https://youtu.be/_EeaAfAOxTw?t=284s, Bookfox Think⟳ of the faked O in Harry Met Sally, what she did in that restaurant.”

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
See all B2 English words →

See also

big O notation big oil Big One big ones Big Osage Big Pats Creek

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