DictionaryAI

nonce

USNAHNS/nɑns/SayNONSUK/nɒns//nɔns/

Pluralnonces

7 meanings of nonce

Practice

  1. 1
    computer securitynouncountable
    In computer security, a number used only one time, for example so that old messages cannot be copied and sent again.

    The app adds a new nonce to every login request.

    Because each nonce is used only once, a copied message is rejected.

    Note
  2. 2
    for nownounliterary
    The one occasion or present purpose, now only used in the phrase for the nonce.

    We'll drive the old car for the nonce, until we can buy a new one.

    For the nonce, the meeting room will also be our lunchroom.

    UsageIn everyday talk, say for now instead.

    Note
  3. 3
    nouncountable
    A word someone makes up for one particular time or use.
    Note
  4. 4
    adjective
    Made or used for just one time or one special purpose.

    Most of the words the little girl made up were nonce creations, used once and then forgotten.

    The poet invented a nonce form for this one poem and never wrote in it again.

    Similarone-off

  5. 5
    sex offendernounderogatoryBritishIrelandcountable
    An insulting word for a person who has committed sex crimes, especially against children.
    Note
  6. 6
    stupid personnounslangderogatoryBritishIrelandcountable
    A person thought of as stupid or good for nothing.

    You nonce, you've put the milk back in the cupboard again!

    He called his brother a nonce for locking the keys in the car.

    UsagePeople may think you mean someone who has committed sex crimes, even when you only mean 'stupid person'.

    Similaridiot, prat, plonker, muppet

    Note

Less common meaning

  1. 7
    nounslangBritishIreland
    A person who secretly tells the police about crimes their own group is doing.

Practice

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Origins

Meanings 1–4

From a Middle English phrase meaning "for the once", whose words were later split up differently.

Checked 1 Nov 2026 · 1 fact

  • Nonce derives from a Middle English phrase meaning 'for the once', through a change in its word boundaries. en.wiktionary.org
Meanings 5–6

British criminal slang recorded by 1970; no one knows for sure where it comes from.

Checked 1 Nov 2026 · 3 facts