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.
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
Phelan batted aside several assertions, saying the measure targets candidates and campaign operatives who would deceive voters with fake images that often look real.
—
John C. Moritz, Austin American Statesman, 30 July 2025
There are four myths here, beginning with the assertion that the recession was caused by too much private sector greed and risk-taking and too little government supervision.
—John C. Goodman, Forbes.com, 27 July 2025
The migrants' lawyers have disputed the gang membership claims and said their clients were not given a chance to contest the government's assertions.
—Jan Wolfe, USA Today, 25 July 2025
Prosecutors in a reply brief snapped back at the assertion that Yu’s service on the City Council should be considered in reducing the charge.
—Michael Slaten, Oc Register, 24 July 2025
See All Example Sentences for assertion
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John C. Moritz, Austin American Statesman, 30 July 2025
There are four myths here, beginning with the assertion that the recession was caused by too much private sector greed and risk-taking and too little government supervision.
—John C. Goodman, Forbes.com, 27 July 2025
The migrants' lawyers have disputed the gang membership claims and said their clients were not given a chance to contest the government's assertions.
—Jan Wolfe, USA Today, 25 July 2025
Prosecutors in a reply brief snapped back at the assertion that Yu’s service on the City Council should be considered in reducing the charge.
—Michael Slaten, Oc Register, 24 July 2025
See All Example Sentences for assertion
Cite this Entry
“Assertion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/assertion. Accessed 3 Aug. 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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