To give an assurance that something will be done right.
To make something certain.
To assume or take responsibility for a debt or other obligation.
The person to whom a guarantee is made.
A person who gives such a guarantee; a guarantor.
A legal assurance of something, e.g. a security for the fulfillment of an obligation.
More specifically, a written declaration that a certain product will be fit for a purpose and work correctly; a warranty
Anything that assures a certain outcome.
To surrender formally some right or trust.
To cast off, repudiate.
To abandon, forsake, discontinue (an action, habit, intention, etc), sometimes by open declaration.
To fail to follow suit; playing a card of a different suit when having no card of the suit led.
To make a renunciation of something.
To give up, resign, surrender.
To decline further association with someone or something, disown.
An act of renouncing.