Isn't

//ˈɪz.ənt// noun, verb, slang

noun, verb, slang ·Moderate ·College level

Definitions

Noun
  1. 1
    Something or someone that is defined by the lack of the characteristic being discussed. colloquial, nonstandard

    "The most obvious recommendations for Joe Biden are a succession of “isn’ts.” He isn’t Donald Trump. He isn’t Bernie Sanders. He isn’t angry, bigoted, cruel, demagogic, erratic, frightening or gross. He isn’t going to drive Americans to distraction or the country into a ditch."

Verb
  1. 1
    Contraction of is + not (negative auxiliary). abbreviation, alt-of, contraction

    "Nice day, isn't it?"

Synonyms

All synonyms
ain't

Example

More examples

"Well, the night is quite long, isn't it?"

Etymology

From is + -n't.

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