- A fluted, or ribbed, board on which clothes are rubbed
in washing them. - A board running round, and serving as a facing for, the
walls of a room, next to the floor; a mopboard. - A broad, thin plank, fixed along the gunwale of boat to
keep the sea from breaking inboard; also, a plank on the sill of a
lower deck port, for the same purpose; -- called also wasteboard.