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
Yates doubled down on this assertion to The Charlotte Observer on Thursday, about 24 hours after NASCAR filed a counterclaim to the lawsuit involving the sanctioning body and 23XI and FRM.
—
Alex Zietlow, Charlotte Observer, 6 Mar. 2025
Trump’s address featured a slew of false claims, such as the assertion that U.S. citizens that are hundreds of years old are receiving Social Security checks.
—Michael Wilner, Los Angeles Times, 5 Mar. 2025
The assertion of what is known as the Major Questions Doctrine in West Virginia vs EPA held that the executive cannot act on what would be a major political question if Congress has not considered it and legislated accordingly.
—Clyde Wayne Crews Jr., Forbes, 4 Mar. 2025
When Trump and Musk's assertions were once again referenced in multiple questions posed by reporters during Tuesday's news conference, Wilmore, who fielded the questions, struck a diplomatic air in his answers.
—Eric Lagatta, USA TODAY, 4 Mar. 2025
See All Example Sentences for assertion
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Alex Zietlow, Charlotte Observer, 6 Mar. 2025
Trump’s address featured a slew of false claims, such as the assertion that U.S. citizens that are hundreds of years old are receiving Social Security checks.
—Michael Wilner, Los Angeles Times, 5 Mar. 2025
The assertion of what is known as the Major Questions Doctrine in West Virginia vs EPA held that the executive cannot act on what would be a major political question if Congress has not considered it and legislated accordingly.
—Clyde Wayne Crews Jr., Forbes, 4 Mar. 2025
When Trump and Musk's assertions were once again referenced in multiple questions posed by reporters during Tuesday's news conference, Wilmore, who fielded the questions, struck a diplomatic air in his answers.
—Eric Lagatta, USA TODAY, 4 Mar. 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 11 Mar. 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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