The denial or invalidation of one's own needs, interests, etc. for the sake of another's; the setting aside of self-interest.
An act of self-denial.
The act of waiving, or not insisting on, some right, claim, or privilege.
A legal document removing some requirement, such as waiving a right (giving it up) or a waiver of liability (agreeing to hold someone blameless).
Something that releases a person from a requirement.
To waive (to relinquish, to forego).