noun

a bag of cloth stuffed with a mass of soft material, used as a comfortable support for sitting or leaning on.

comfortable chairs and sofas piled with cushions

pillow,bolster,headrest,scatter cushion,floor cushion,beanbag,booster cushion,squab,hassock,kneeler,mat,pillion,zabuton

verb

soften the effect of an impact on.

the bag cushions equipment from inevitable knocks

protect,shield,shelter,cocoon