know-it-all
noun
\ ˈnō-ət-ˌȯl
\
\
Definition of know-it-all
: one who claims to know everything
also
: one who disdains advice
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More Definitions for know-it-all
know-it-all
noun
English Language Learners Definition of know-it-all
informal + disapproving
: a person who talks and behaves like someone who knows everything
See the full definition for know-it-all in the English Language Learners Dictionary
know-it-all
noun
\ ˈnō-ət-ˌȯl\
Kids Definition of know-it-all
: a person who always claims to know everything
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