(cheat on someone) to secretly have sex with someone other than your husband, wife, or partner. You can also say that someone is unfaithful to their husband, wife, or partner
He discovered she’d been cheating on him.
Synonyms and related words
Fidelity, infidelity and marriage problems
a bit on the side
adulterer
adulteress
2
(cheat on something) mainly Americanto cheat by not obeying the rules on something
They say she cheated on her taxes.
Synonyms and related words
To cheat or trick someone
shanghai
rip off
deceive
cheat on
phrasal verb transitive
Word Forms
present tense
I/you/we/they
cheat on
he/she/it
cheats on
present participle
cheating on
past tense
cheated on
past participle
cheated on
DEFINITIONS2
1
(cheat on someone) to secretly have sex with someone other than your husband, wife, or partner. You can also say that someone is unfaithful to their husband, wife, or partner
He discovered that she’d been cheating on him.
Synonyms and related words
Fidelity, infidelity and marriage problems
a bit on the side
adulterer
adulteress
2
(cheat on something) to cheat by not obeying the rules on something