defamation

American  

[def-uh-mey-shuhn] / ˌdɛf əˈmeɪ ʃən /

noun

1. the act of defaming; false or unjustified injury of the good reputation of another, as by slander or libel; calumny.

   She sued the magazine for defamation of character.

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defamation British  

/ ˌdɛfəˈmeɪʃən /

noun

1. law the injuring of a person's good name or reputation Compare libel slander

2. the act of defaming or state of being defamed

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Commonly Confused

See slander.

Etymology

Origin of defamation

First recorded in 1275–1325; Middle English; replacing (by analogy with defame ) Middle English diffamacioun, from Medieval Latin diffāmātiōn- (stem of diffāmātiō ), equivalent to Latin diffāmāt(us) (past participle of diffāmāre; defame ) + -iōn- noun suffix ( see -ion)

Explanation

Defamation is a dirty trick against someone's reputation. If you were so furious at your friend that you spread a rumor that he was still wetting his bed, that would be defamation of your friend. The noun defamation describes something very mean and completely deliberate, essentially a false accusation against someone or an attack on a person's good reputation. The terms libel and slander — written or spoken lies about a person, group, or business — both fall under the category of defamation. Sometimes defamation is even a punishable crime, and in every instance it's unkind and malicious.

Example Sentences

"Time for @newscorp to open that checkbook, it's not his signature. DEFAMATION!"

From BBC • Sep. 8, 2025

Related Words

• denigration
• disparagement