to violate rules dishonestly, e.g. at a game or in an examination

to deceive, trick, or swindle

to deprive (somebody) of something valuable, esp by deceit or fraud

to deceive, trick, or swindle (somebody)

to avoid, defeat the purpose of, or blunt the effects of (something)

cheat winter of its dreariness — Washington Irving

(+ on) to be sexually unfaithful to (somebody)

She had been cheating on her husband

somebody who cheats; a pretender or deceiver

a fraudulent deception; a trick or fraud