the exchange of one thing (object, right, opportunity) for another of approximately equal value, so as to seal a bargain, or effect a compromise.

the giving up of one desired objective in order to attain another, when both cannot be achieved at the same time; as, the factory workers viewed the trade-off of air quality for jobs as a necessary evil.

an exchange of one thing in return for another; especially relinquishment of one benefit or advantage for another regarded as more desirable.

a choice between two mutually inhibitory factors

A property that affects more than one attribute and is a sensitivity point for more than one attribute.