headrest

English Thesaurus

1. a rest for the head (noun.artifact)

hypernym	:	rest,
definition	:	a support on which things can be put (noun.artifact)

2. a cushion attached to the top of the back of an automobile's seat to prevent whiplash (noun.artifact)

hypernym	:	cushion,
definition	:	a soft bag filled with air or a mass of padding such as feathers or foam rubber etc. (noun.artifact)

part meronym	:	car seat,
definition	:	a seat in a car (noun.artifact)