The meaning of ASSERT is to state or declare positively and often forcefully or aggressively. How to use assert in a sentence. Synonym Discussion of Assert.

ASSERT definition: to state with assurance, confidence, or force; state strongly or positively; affirm; aver. See examples of assert used in a sentence.

If you assert yourself, you act forcefully in a way that expresses your confidence:

assert oneself, to insist on one's rights, declare one's views forcefully, etc. The candidate finally asserted himself about property taxes

To state or express positively; affirm: asserted his innocence. 2. To defend or maintain (one's rights, for example). 3. To put into action boldly; employ or demonstrate: asserted her …

to make a claim to: Minorities are now asserting their right to be heard. Idioms assert oneself, to claim one's rights or declare one's views firmly. aver: He asserted his innocence of the crime. …

assert, declare, affirm, and avow mean to say something in a way that shows you feel strongly about it, usually when you expect someone to disagree or challenge you.