assert

UK/əˈsɜːt//əˈsɝt/

assert verb: to declare with assurance or plainly and strongly; to state positively.

Verb

assert (third-person singular simple present asserts, present participle asserting, simple past and past participle asserted)

To declare with assurance or plainly and strongly; to state positively.
- Numerous experimental tests and other observations have been offered in favor of animal mind reading, and although many scientists are skeptical, others assert that humans are not the only species capable of representing what others do and don’t perceive and know.2012 March-April, Colin Allen, “Do I See What You See?”, in American Scientist, volume 100, number 2, archived from the original on 26 Apr 2012, page 168
- He would often assert that there was life on other planets.
Synonyms:

affirm, asseverate, aver, avow
To use or exercise and thereby prove the existence of.
- to assert one's authority
- Salman Rushdie has asserted his right to be identified as the author of this work.
Synonyms:

exert
To maintain or defend, as a cause or a claim, by words or measures; to vindicate a claim or title to.
- to assert our rights and liberties
(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.
- Since going to therapy, I've found it much easier to assert myself.
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).
To set a signal on a line using a voltage or electric current.

Noun

assert (plural asserts)

Synonym of assertion.

Synonyms:

assertion

assert meaning in Tamil, Urdu, Bengali and Telugu

assert in Tamil

உரிமை நாட்டு, உறுதியாகக் கூறு, உறுதியுரை, நிலை நாட்டு, நிலைநாட்டு, நிலையை வலியுறுத்து

assert in Urdu

اعلان کرنا, کہنا, تصدیق کرنا, زعم کرنا, زور دینا

assert in Telugu

to assert, say empathetically: వక్కాణించు vakkāṇiñcu

More languagesFewer languages

assert in Malayalam: ഉറപ്പിച്ചുപറയുക, അവകാശപ്പെടുക, സ്ഥാപിക്കുക, സമർത്ഥിക്കുക
assert in Kannada: ಒತ್ತಿಹೇಳು, ಪ್ರತಿಪಾದಿಸು, ಘೋಷಿಸು, ಅಧಿಕಾರವಾಣಿಯಿಂದ ಹೇಳು
assert in Sanskrit: वष्टि váṣṭi, प्रवदति pravadati

Examples of assert in a sentence

During the centuries, the people of Ireland struggled constantly to assert their right to govern themselves.
The author asserted her right to paternity on the book's copyright page.
Their asserted claims were challenged in court.

All 40 example sentences with assert

Synonyms of assert

Antonyms

All synonyms and antonyms of assert

Forms of assert

Verb
third-person singular present	asserts
present participle	asserting
past participle	asserted
past	asserted
Noun
plural	asserts

Past tense of assert: asserted

Origin of assert

From Latin assertus, perfect passive participle of asserō (“declare someone free or a slave by laying hands upon him; hence free from, protect, defend; lay claim to, assert, declare”), from ad (“to”) + serō (“join, range in a row”).

Words formed from assert

Words that rhyme with assert

48 more rhymesFewer rhymes

Questions about assert

What does assert mean?: Assert means to declare with assurance or plainly and strongly; to state positively.
What is assert in Tamil?: Assert in Tamil is உரிமை நாட்டு, உறுதியாகக் கூறு, உறுதியுரை. See Assert meaning in Tamil.
What part of speech is assert?: Assert can be a verb or a noun.
How do you pronounce assert?: Assert is pronounced /əˈsɜːt/ (UK).
What is the past tense of assert?: The past tense of assert is asserted.

Words near assert in the dictionary

Last updated: 2026-09-02

Pronunciation audio from Wikimedia Commons, each file under its own free license: En-us-assert.ogg.

Cite this entry: “assert.” Word.ws, https://word.ws/assert. Based on Wiktionary, CC BY-SA 4.0.