Cheat/tʃiːt/ Definition 1 of 5Pro Tip 1/3Unethical behavior Using 'cheat' can suggest a serious breach of ethics and trustworthiness. His reputation was ruined after he was caught cheating on the test. Pro Tip 2/3Subtle tactics Sometimes, 'cheat' may reference small acts of deception not considered grave. He cheats at cards by hiding aces up his sleeve. Pro Tip 3/3Not always serious 'Cheat' may be used playfully among friends referring to minor dishonest acts. You cheated at the game, but I'll let you off this time!