Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “assert”

See all translations

assert

verb [T] uk   /əˈsɜːt/ us    /-ˈsɝːt/
assert yourself
More examples
C2 to behave in a way that expresses your confidence, importance, or power and earns you respect from others: I really must assert myself more in meetings.
C1 formal to say that something is certainly true: [+ that] He asserts that she stole money from him.C2 to do something to show that you have power: Throughout the Cold War, the Allies asserted their right to move freely between the two Berlins. She very rarely asserts her authority over the children.
(Definition of assert from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of assert?
Add Cambridge dictionaries to your browser to your website

Definitions of “assert” in other dictionaries

Word of the Day

christmassy

typical of Christmas, or happy because it is Christmas

Word of the Day

Cleavage proves divisive in Cambridge’s words of 2014

by Alastair Horne,
December 19, 2014
​​​​ Other dictionaries may choose faddish novelties as their words of the year, but here at Cambridge, we like to do something different. We look for the words that have seen sudden surges in searches over the course of the year – words that have been baffling users of English and driven them

Read More 

tweleb noun

December 22, 2014
informal a Twitter celebrity; (more specifically, someone who has more than 1,000 followers on Twitter) There were a few old and a few new faces, including a tweleb or two. Expect to see and hear more from these cool kids.

Read More