know-it-all

noun \ ˈnō-ət-ˌȯl \

Definition of know-it-all

: one who claims to know everything; also : one who disdains advice

know-it-all

adjective

First Known Use of know-it-all

1873


KNOW-IT-ALL Defined for English Language Learners

know-it-all

noun

Definition of know-it-all for English Language Learners

  • : a person who talks and behaves like someone who knows everything


KNOW-IT-ALL Defined for Kids

know-it-all

noun \ ˈnō-ət-ˌȯl \

Definition of know-it-all for Students

: a person who always claims to know everything


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