guest room

An extra wheel held in reserve in a motor vehicle, to be used in an emergency.

plural of spare wheel

(idiomatic) To do everything within one's powers to achieve something.

Alternative form of sparerib.

plural of spare-rib (alternative form of spareribs).

plural of spare room

(automotive) A type of spare tire. The undersized spare wheel (tire and rim) provided by automotive manufacturers in lieu of a full-sized tire, for use in emergencies, when one of the regular ones can no longer be used.

plural of donut spare

plural of hot spare