A soft bag filled with air or a mass of soft material, used as a comfortable support for sitting or leaning on. She placed a cushion on the chair to make it more comfortable.
A layer of material used to reduce shock or to protect something. The helmet has a cushion inside to protect the head from impacts.
A financial reserve or buffer that provides protection against unforeseen expenses or losses. The company maintained a cash cushion to handle unexpected downturns in the market.
In billiards, snooker, or similar games, the padded side or rail of the table against which the balls rebound. The cue ball struck the cushion and bounced back toward the centre of the table.