cheat on

US /tʃiːt ɑːn/
UK /tʃiːt ɑːn/
"cheat on" picture
1.

trair, ser infiel

to be unfaithful to one's spouse or partner

:
He confessed to his wife that he had cheated on her.
Ele confessou à esposa que a havia traído.
She suspected her boyfriend was cheating on her.
Ela suspeitava que o namorado a estava traindo.
2.

colar, trapacear

to copy from someone else or use dishonest methods to pass an exam or test

:
The student was caught cheating on the exam.
O aluno foi pego colando na prova.
It's not fair to cheat on your homework.
Não é justo colar na sua lição de casa.