A more thorough explanation:

Definition:

• cheat, n. - the act of deceiving or defrauding someone
• cheat, n. - a person who habitually cheats or swindles others
• cheat, vb. - to defraud or practice deception

Examples:

• He cheated on the test by looking at his neighbor's paper.
• The company was caught cheating on their taxes.
• She's a cheat who always finds a way to get what she wants.

These examples illustrate the different ways in which the term "cheat" can be used. The first example shows how someone can cheat by copying someone else's work or answers. The second example shows how a company can cheat by not paying their fair share of taxes. The third example shows how a person can be labeled as a cheat if they habitually deceive or swindle others.