[count] 1 : a soft object or part that is used to make something (such as a seat) more comfortable or to protect a surface from damage : a soft pillow, pad, etc.
▪ a seat/sofa cushion ▪ There is a cushion under the rug to protect the floor. ▪ a cushion of air [=a layer of air that provides support or protection to something] — see picture at living room 2 : any one of the rubber parts that the ball bounces off along the inner edges of a billiard table 3 : something (such as an extra amount of money) that you can use to reduce the bad effect of something (such as an unexpected problem or expense)
▪ We didn't have a financial cushion when my husband lost his job. — often + against ▪ We use our savings as a cushion against major expenses. 4 : a lead in a game or competition that is large enough to allow the leader to feel confident about winning — usually singular ▪ The team enjoyed a 6–0 cushion in the last inning.