* Noun: This is the most common usage. A waiver is a document or formal statement relinquishing a right, claim, or privilege.
* Example: "The athlete signed a waiver releasing the company from liability."
* Verb: It can also be used as a verb meaning to give up a right, claim, or privilege.
* Example: "He waived his right to a jury trial."
* Adjective: In legal contexts, "waiver" can be used as an adjective to describe something related to the relinquishment of a right.
* Example: "They discussed the waiver provisions of the contract."
It's important to look at the context to determine the correct part of speech for "waiver" in a particular sentence.