Definitions
There is 1 meaning of the phrase
Know-It-All.
Know-It-All - as a noun
Someone who thinks he knows everything and refuses to accept advice or information from others
Synonyms (Exact Relations)
Example Sentences
"He always has an answer for everything - he's such a know-it-all."
"She acts like a know-it-all, but she often gets her facts wrong."
"The know-it-all in our group always tries to show off their knowledge."
"I avoid talking to him because he's an annoying know-it-all."
"She is known as the office know-it-all because she has an answer for every problem."