A release of stress through breathing motions. / (idiomatic) A reassurance or support, something that reduces stress from an arduous activity.

(law) The custody and support of children in divorce proceedings.

plural of sigh of relief

plural of relief valve

A safety valve that relieves pressure when it becomes high but before it becomes dangerous.

plural of relief pitcher

(baseball) A pitcher who enters the game after the starting pitcher or another relief pitcher is removed due to injury, ineffectiveness, ejection from the game or fatigue.

Dated form of bas relief.

plural of bass-relief

Any printing method in which the ink is laid upon the protruding parts of the printing form.