'Headboard' definitions:

Definition of 'headboard'

(from WordNet)
noun
A vertical board or panel forming the head of a bedstead

Definition of 'Headboard'

From: GCIDE
  • Headboard \Head"board`\ (h[e^]d"b[=o]rd`), n. A board or boarding which marks or forms the head of anything; as, the headboard of a bed; the headboard of a grave. Headborough