A trough for washing broken ore, gravel, or sand; a launder.
A shaped piece of wood used to level a bed or contour the shape of a mould, as for a bell
A continuous line of plates or planks running from bow to stern that contributes to a vessel's skin. (FM 55-501).
A type of aerodynamic surface mounted on an aircraft fuselage to fine-tune the airflow.
A board with a corrugated surface against which laundry may be rubbed.
A stretch of ripples or bumps on a dirt or gravel road caused by interaction between traffic and road surface.
A board fastened along a ship's gunwale to prevent splashing; a splashboard.
Such a board used as a simple percussion instrument.
To play a washboard.
To move up and down or back and forth across the surface of a hive, possibly to lay down a layer of propolis and wax.
To produce a rippled texture on a surface.