Definition of know-it-all Know-it-all

We found 2 definitions of know-it-all from 2 different sources.

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What does know-it-all mean?

WordNet

WordNet by Princeton University

Noun
know-it-all - someone who thinks he knows everything and refuses to accept advice or information from others
  know-all
  egotist, swellhead, egoist a conceited and self-centered person
= synonym
= antonym
= related word

Wiktionary Wiktionary dictionary logo

  • know-it-all (Noun)
    Someone who obnoxiously claims to be knowledgeable on a subject.

Pronunciation

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Sign Language

know-it-all in sign language
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