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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
When a program cheats on the very test to catch dangerous behavior, that test and program can no longer be trusted. John Caruso, Hartford Courant, 20 Aug. 2026 That mostly focuses on her father, TJ Earle, who runs the Earle family company and cheated on her mother, Alisa, with a woman named Ashley Dupré (who had previously made headlines for her affair with politician Eliot Spitzer — yes, really). Jason P. Frank, Vulture, 19 Aug. 2026 Cuba is giving love another shot after previously being engaged and calling off the wedding upon finding out her fiancé was cheating on her. Caroline Blair, PEOPLE, 19 Aug. 2026 The teen version includes stronger safety protections, parental controls and features designed to emphasize learning and tutoring rather than simply helping kids cheat on their homework. Jeremy Kahn, Fortune, 18 Aug. 2026 See All Example Sentences for cheat on

Browse Nearby Words

Cite this Entry

“Cheat on.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cheat%20on. Accessed 22 Aug. 2026.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster