headboardPronunciation: /ˈhɛdbɔːd/Translate headboard | into German | into Spanish Definition of headboard noun 1an upright panel forming or placed behind the head of a bed. 2a board on the front of a train bearing the name of the route or service for which it is being used. 3 Sailing a reinforcement at the top of a triangular sail such as a mainsail. headboard in other Oxford dictionaries Definition of headboard in the US English dictionary