headrest

UK: /ˈhɛdrɛst/ US: /ˈhɛdˌrɛst/ ,(hed′rest′)

WordReference Random House Learner's Dictionary of American English © 2025

head•rest /ˈhɛdˌrɛst/   n. [countable]

1. a support for the head:
   the headrest on a couch.
2. Automotive a padded extension at the top of a seat back, esp. in an automobile.

WordReference Random House Unabridged Dictionary of American English © 2025

head•rest  (hed′rest′), n. 

1. a rest or support of any kind for the head.
2. Automotive Also called head′ restraint′. a padded part at the top of the back of a seat, esp. in an automobile, to protect one's head against whiplash in a collision.

• head + rest¹ 1850–55

Collins Concise English Dictionary © HarperCollins Publishers::

headrest / ˈhɛdˌrɛst/ noun

1. a support for the head, as on a dentist's chair or car seat