a small decorative cushion (= a bag made of cloth, plastic, or leather that is filled with soft material, often has an attractive cover, and is used especially on chairs for sitting or leaning on) that can be moved around and used in different places

A circular blue couch with a few throw pillows stood empty. 一张环形的蓝色沙发上放着几个装饰靠枕，上面空空如也。

She sat in an armchair clutching a throw pillow. 她坐在扶手椅上，手里紧紧抓着一个抱枕。