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cheat on

Idioms  
  1. Be sexually unfaithful to, as in They broke up right after she found he was cheating on her. [Colloquial; 1920s]


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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They hacked into an AI company called Hugging Face in a long-shot attempt to cheat on a test.

From The Wall Street Journal Jul. 26, 2026

Manchester City footballer Ruben Dias has confirmed his break-up with Love Island presenter Maya Jama, but insisted he did not cheat on her during their relationship.

From BBC May 30, 2026

Clear-eyed hindsight shows that Sullivan didn’t deliberately cheat on her boyfriend, though.

From Salon Feb. 20, 2026

“I don’t know what he was using them for, but he has been known for trying to cheat on schoolwork and stuff,” she said.

From Slate Feb. 12, 2026

“Did Rhonda offer to help you cheat on the test?”

From "The Mysterious Benedict Society" by Trenton Lee Stewart

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