cheat on

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

The one that had not been penalized for cheating on math peeked at the answer sheet 99% of the time, while the one that had did so less than 1% of the time. — Harry Booth, Time, 5 Nov. 2026

Separately, OpenAI got into hot water when its models escaped a testing sandbox in July and hacked Hugging Face to cheat on a security evaluation. — Ruben Circelli, PC Magazine, 29 Oct. 2026

In War, for example, Morgan Henderson does indeed cheat on his wife with a 20-something aspiring actress. — Elise Taylor, Vanity Fair, 24 Oct. 2026

News, Daiane dos Santos Farias found out on her birthday that her husband, Gilberto Nogueria de Oliveira, had cheated on her. — Sean Joseph Outkick, FOXNews.com, 22 Oct. 2026

Rhymes for cheat on

• anton
• argon
• axon
• baronne
• baryon
• baton
• boron
• buisson
• bygone
• capon
• cardon
• chiffon