O OneWordDaily
AI-generated image
Word of the Day Tuesday, June 9, 2026

assertion

/əˈsɜːrʃən/ noun · British & US
Valid in UKValid in US
Share WhatsApp

What does assertion mean?

noun

A statement that something is true or exists, often made with confidence or authority. An assertion can be a claim or a declaration that is made with conviction.

Example

"The scientist made an assertion that the new theory explained the phenomenon."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for assertion

Antonyms of assertion

Rhymes with assertion

Etymologically related