cheat on - definition and synonyms

phrasal verb [transitive]
present tense
I/you/we/theycheat on
he/she/itcheats on
present participlecheating on
past tensecheated on
past participlecheated on
  1. 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 she’d been cheating on him.

  2. 2
    cheat on something mainly American to cheat by not obeying the rules on something

    They say she cheated on her taxes.

See also main entry: cheat