assertion
noun
as·ser·tion
ə-ˈsər-shən 
a-
: the act of asserting or something that is asserted: such as
a
: insistent and positive affirming, maintaining, or defending (as of a right or attribute)
an assertion of ownership/innocence
b
: a declaration that something is the case
He presented no evidence to support his assertions.
Synonyms
Examples of assertion in a Sentence
the assertion that all men have certain unalienable rights is set forth in the Declaration of Independence
made the unlikely assertion that gravity affects light
Recent Examples on the Web
Bowman maintains his innocence, an assertion Kandee's family doesn't buy.
—
Amanda Lee Myers, USA TODAY, 31 Jan. 2025
Despite legal experts’ widespread assertion that CBS’ editorial judgment was protected by the First Amendment, The New York Times Thursday night reported that a settlement was in the works.
—Brian Stelter, CNN, 31 Jan. 2025
The assertions — specifically that DeepSeek’s large language model cost just $5.6 million to train — have sparked concerns over the eyewatering sums that tech giants are currently spending on computing infrastructure required to train and run advanced AI workloads.
—Ryan Browne,dylan Butts, CNBC, 30 Jan. 2025
Russian parliamentary speaker Vyacheslav Volodin responded to the American right-wing broadcaster's assertion—which was not backed up by evidence, that the Biden administration had tried to assassinate the Russian president.
—Jonathan Granoff, Newsweek, 29 Jan. 2025
See all Example Sentences for assertion 
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Amanda Lee Myers, USA TODAY, 31 Jan. 2025
Despite legal experts’ widespread assertion that CBS’ editorial judgment was protected by the First Amendment, The New York Times Thursday night reported that a settlement was in the works.
—Brian Stelter, CNN, 31 Jan. 2025
The assertions — specifically that DeepSeek’s large language model cost just $5.6 million to train — have sparked concerns over the eyewatering sums that tech giants are currently spending on computing infrastructure required to train and run advanced AI workloads.
—Ryan Browne,dylan Butts, CNBC, 30 Jan. 2025
Russian parliamentary speaker Vyacheslav Volodin responded to the American right-wing broadcaster's assertion—which was not backed up by evidence, that the Biden administration had tried to assassinate the Russian president.
—Jonathan Granoff, Newsweek, 29 Jan. 2025
See all Example Sentences for assertion
Dictionary Entries Near assertion
Cite this Entry
“Assertion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/assertion. Accessed 6 Feb. 2025.
Copy CitationKids Definition
assertion
noun
as·ser·tion
ə-ˈsər-shən
a-
: the act of asserting
also
: something asserted : declaration
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