Word

assert

verb C1

UK /əˈsɜːt/

US /əˈsɝt/

Meanings

verb

To state or claim something firmly and confidently.

verb

To express, defend, or insist on your rights, authority, or control.

Definition

To assert something is to state it confidently, often as a fact or strong opinion.

To assert means to say or claim something firmly and confidently, sometimes without providing proof. It is often used when someone insists that a statement is true or wants it to be accepted. It can also mean to defend or express your rights, authority, or control in a situation.

Examples

I assert that the results reflect a consistent pattern, even if the conclusion is unpopular.
You can assert your boundaries without sounding hostile, especially in a tense conversation.
He asserted that he had followed the instructions exactly, but he could not explain his reasoning.
She asserted her authority by taking responsibility for the final decision and communicating it clearly.
They asserted that the change would improve quality, yet they still invited criticism from the team.

Common mistake

Learners often use "assert" as if it means "prove," but it means to state confidently, not necessarily to provide evidence.