reliever

noun

One that provides relief.

noun

A relief pitcher.

noun

One who or that which relieves or gives relief.

noun

In gunnery, an iron ring fixed to a handle by means of a socket, which serves to disengage the searcher of a gun when one of its points is retained in a hole.

noun

A garment kept for being lent out.

noun

In mech.: A release; a device for releasing some part of a mechanism at a certain time or position.

noun

A device, such as a spring or elastic substance, for preventing shocks on a machine or part.

noun

One who, or that which, relieves.

noun

A relief pitcher.

noun

Someone who fills in for another.