Don't!

Don't! is a contraction of "do not." It is a negative imperative, used to express a prohibition or warning against performing a specific action. Grammatically, it combines the auxiliary verb "do" in its negative form ("do not") with the base form of a verb.

The primary function of "don't!" is to directly and succinctly command or advise someone not to do something. The exclamation mark emphasizes the urgency or importance of the prohibition. It is a forceful, direct way of communicating a negative instruction.

Usage is common in both spoken and written language. Its brevity makes it suitable for signs, notices, and quick verbal commands. While generally understood, the context can sometimes influence the specific interpretation. For example, "Don't touch that!" implies an immediate threat, while "Don't forget!" serves as a reminder.