cheat on

phrasal verb

cheated on; cheating on; cheats on
informal
: to break a promise made to (someone, such as one's wife or husband) by having sex with someone else
He cheated on his wife/girlfriend.

Examples of cheat on in a Sentence

Recent Examples on the Web
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The biathlete bronze medallist who broke down in tears and admitted to cheating on his (now ex-)girlfriend, in a gonzo bid to get her back? Louisa Thomas, New Yorker, 22 Feb. 2026 And then there was the bronze medalist who used his newfound fame to apologize for cheating on his girlfriend. Donna Vickroy, Chicago Tribune, 20 Feb. 2026 His ex-fiancée was cheating on him with his friend, which is what broke up their engagement. Rafaela Bassili, Vulture, 17 Feb. 2026 Oh, and the episode ended with Bree finding out that Lucy was the person Evan (Branden Cook) cheated on her with. Samantha Highfill, Entertainment Weekly, 17 Feb. 2026 See All Example Sentences for cheat on

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“Cheat on.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cheat%20on. Accessed 2 Mar. 2026.

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