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.
To demand, to insist upon (having); to call for authoritatively.
To demand of (someone) to do something.
Naturally to demand (something) as indispensable; to need, to call for as necessary.