* Verb: This is the most common usage. It means to act dishonestly or unfairly to gain an advantage.
* Noun: This refers to a person who acts dishonestly, or an act of dishonesty itself.
* Adjective: While less common, it can be used to describe something that is dishonest or fraudulent.
Examples:
* Verb: "He tried to cheat on the test."
* Noun: "He was caught by the teacher for being a cheat."
* Noun: "That was a blatant cheat!"
* Adjective: "The company used cheat tactics to win the contract."