Demi

//dəˈmiː// adj, name, noun, slang

adj, name, noun, slang ·Moderate ·College level

Definitions

Noun
  1. 1
    Alternative spelling of demy. alt-of, alternative
  2. 2
    A member of the demimonde; a woman maintained by a wealthy man.

    "It’s not every one who can distinguish between a demi and a duchess."

  3. 3
    A fifty pence piece. slang
  4. 4
    A bottle of wine containing 0.375 liters of fluid, half the volume of a standard bottle; a split.
  5. 5
    A small glass used chiefly in France (especially for beer) holding 250 milliliters.

    "The place was empty save for a big man who was sitting opposite drinking a demi of dark beer."

Adjective
  1. 1
    Demisexual. informal

    "“[...] I totally think she's demi.” “What?” “Demisexual? She only likes fucking people she's in love with, whereas I,” Maddie said, moving closer to Jordan, “like fucking anything and anyone. Everyone has such hang-ups about sex, it's like pathetic, you know? We are just, like, totally animals after all, evolved monkeys. I'm all for giving in to my primal instincts.”"

Proper Noun
  1. 1
    A female given name, a diminutive of Demetria introduced into English in the 1990s by the actress Demi Moore.

Antonyms

All antonyms

Example

More examples

"The place was empty save for a big man who was sitting opposite drinking a demi of dark beer."

Etymology

Etymology 1

From Middle English demi, from Anglo-Norman demi, from Latin dimidius. Literally, “half”.

Etymology 2

Clipping of demimonde.

Etymology 3

Clipping of demisexual.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.