assert

verb

as·​sert ə-ˈsərt How to pronounce assert (audio)
a-
asserted; asserting; asserts

transitive verb

1
a
: to state or declare positively and often forcefully or aggressively
The suspect continued to assert his innocence.
b
: to compel or demand acceptance or recognition of (something, such as one's authority)
… the confrontations that inevitably occur [between orangutans] when several males try to assert dominance …NationalGeographic.com
Wallace asserted control early—shutting down both candidates when they tried to talk over one another, and shushing the audience when it reacted too audibly.Glenn Thrush
2
a
: to demonstrate the existence of
He wished to vindicate himself in some way, to assert his manhood.James Joyce
assertible adjective
an assertible defense
Phrases
assert oneself
1
: to speak or act in a manner that compels recognition especially of one's rights
… she wants him to learn to assert himself with people in positions of authority.Malcolm Gladwell
… a long-suffering Irish community asserted itself by putting its own politicians in power.Ellis Cose
2
: to become more strongly apparent : to become clearly seen, known, or experienced
Unbidden, a glint asserts itself in Ms. Brown's eyes …Joanne Kaufman
… a passion that through its long suppression was now asserting itself with volcanic necessity.Zadie Smith
Choose the Right Synonym for assert

assert, declare, affirm, protest, avow mean to state positively usually in anticipation of denial or objection.

assert implies stating confidently without need for proof or regard for evidence.

asserted that modern music is just noise

declare stresses open or public statement.

declared her support for the candidate

affirm implies conviction based on evidence, experience, or faith.

affirmed the existence of an afterlife

protest emphasizes affirming in the face of denial or doubt.

protested that he really had been misquoted

avow stresses frank declaration and acknowledgment of personal responsibility for what is declared.

avowed that all investors would be repaid in full

synonyms see in addition maintain

Examples of assert in a Sentence

He asserted that there were spies in the government. She asserted her independence from her parents by getting her own apartment. The boss was reluctant to assert his authority over his employees.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
However, students have consistently rejected direct talks with Vučić, asserting that he is not constitutionally authorized to engage with them. Barbara A. Perry, Newsweek, 28 Jan. 2025 In particular, this season shows Messer continuing to be at odds with Ali when the 15-year-old, who lives with Titin Myotonic Muscular Dystrophy, tries to assert more independence without mobility aids. Angela Andaloro, People.com, 28 Jan. 2025 Young weaponizes addiction for profit, insurance giant Aetna has charged in a $40 million federal lawsuit, asserting that his businesses cycle patients from one entity to another and encourage relapse so billing cycles can start anew. Teri Sforza, Orange County Register, 27 Jan. 2025 Or were all those billionaire potentates in the Capitol Rotunda — seated in front of Trump’s Cabinet picks — asserting their social, economic and cultural hegemony? Mark Z. Barabak, Los Angeles Times, 26 Jan. 2025 See all Example Sentences for assert 

Word History

Etymology

Latin assertus, past participle of asserere, from ad- + serere to join — more at series

First Known Use

circa 1604, in the meaning defined at sense 1a

Time Traveler
The first known use of assert was circa 1604

Dictionary Entries Near assert

Cite this Entry

“Assert.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/assert. Accessed 31 Jan. 2025.

Kids Definition

assert

verb
as·​sert ə-ˈsərt How to pronounce assert (audio)
a-
1
: to state clearly and strongly
2
: to make others aware of
assert your rights

Legal Definition

assert

transitive verb
as·​sert ə-ˈsərt How to pronounce assert (audio)
: to present and demand recognition of
assert a claim
assertion noun

More from Merriam-Webster on assert

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