Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun headrest

2 senses of headrest

Sense 1
headrest, head restraint -- (a cushion attached to the top of the back of an automobile's seat to prevent whiplash)
       => cushion -- (a soft bag filled with air or a mass of padding such as feathers or foam rubber etc.)

Sense 2
headrest -- (a rest for the head)
       => rest -- (a support on which things can be put; "the gun was steadied on a special rest")