assert

noun

(programming) Synonym of assertion.

verb

To declare with assurance or plainly and strongly; to state positively.

To maintain or defend, as a cause or a claim, by words or measures; to vindicate a claim or title to.

(reflexive) To insist on the legitimacy of one's rights, opinion, etc; not to allow oneself to be dismissed; to ensure that one is taken into consideration; to make oneself respected; to be assertive. See assert oneself.

To use or exercise and thereby prove the existence of.

(programming) To declare that a condition or expression must be true at a certain point in the source code (in some cases causing the program to fail if it is not, as a safeguard).

(electronics) To set a signal on a line using a voltage or electric current.

Roots

sero-sert · Latin · join, bind

Synonyms for assert

asseveratev affirmv averv insistv avowv maintainv avouchv declarev allegev refutev defendv proclaimv

Synonyms & related words for assert

Find synonyms, related words, and the definition of assert — including asseverate, affirm, aver, insist, avow, maintain. Dendril is a free visual thesaurus that shows them on an interactive map where stronger matches sit closer to the center — no signup, no ads.

Words related to assert

Explore words related to assert — words associated with it, words that go with it, and its nearest matches in meaning. Related words include affirmant, verify, reassert, assertion, claim, averral, averment, asseveration. Click any word to make it the center of the map and keep exploring the web of connections.

Synonyms for assert

Common synonyms for assert include asseverate, affirm, aver, insist, avow, maintain, avouch, declare — words that share a close meaning. Hover or tap any word on the map for its definition and part of speech.

Where does assert come from?

The word assert breaks down into one root of Latin origin: the root -sert, from Latin sero (“join, bind”). Explore each root to see other English words built from the same source.