The sound produced, in an internal combustion engine, by the ignition of the fuel-air mixture before the piston reaches top dead centre

A gap, between two electrical terminals, across which sparks are generated. / Such a gap as a component of an engine's ignition system, especially that between the electrodes of a spark plug.

plural of spare tyre

An extra tyre carried in case one of the vehicle's tyres is damaged or deflated. / (idiomatic) A large paunch and rolls of fat around the waist.

Used other than figuratively or idiomatically: see spare, tire. / An extra wheel carried as a replacement in case of a flat. / (idiomatic) Excess weight or fat accumulated near the waist.

plural of sparrow hawk

(transitive) To initiate something by providing the necessary conditions.

plural of sparerib.

plural of spare rib (alternative form of spareribs).

Alternative spelling of sparerib