To recall; to cancel or call a halt to.
To telephone in one's notice of a day's absence from work.
To abandon, forsake, discontinue (an action, habit, intention, etc), sometimes by open declaration.
To cast off, repudiate.
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 surrender formally some right or trust.
To decline further association with someone or something, disown.
An act of renouncing.