'floorboard' definitions:

Definition of 'floorboard'

(from WordNet)
noun
A board in the floor [syn: floorboard, floor board]
noun
The floor of an automobile

Definition of 'floorboard'

From: GCIDE
  • floorboard \floorboard\ n.
  • 1. a board in the floor.
  • Syn: floor board. [WordNet 1.5]
  • 2. the floor of an automobile. [WordNet 1.5]