know-all

[ noh-awl ]

noun

, Informal.

1. a know-it-all.

know-all

noun

1. informal.
   a person who pretends or appears to know a great deal

Word History and Origins

Origin of know-all¹

First recorded in 1880–85

Example Sentences

“Some books and things was carted from the office to Denver a-Wednesday,” said the know-all who had spoken about the mortgage.

From Project Gutenberg

Then the witnesses were called, and Mr. Know-All did first give in his evidence against him.

From Project Gutenberg

The localisation of sensibility was merging into a unified perception whereby people would presently know all-over and at-once.

From Project Gutenberg

Palema went up to the Bush to call Lloyd; and Lloyd came down in one of his know-all-about-it moods.

From Project Gutenberg

Come, Mr. Know-All, look upon the prisoner at the bar; do you know him?

From Project Gutenberg