11-Letter Words Containing: RBOA

• A form of fiberboard made of wood pulp compressed into sheets.

• wallboard composed of wood chips or shavings bonded together with resin and compressed into rigid sheets

• The primary circuit board of a personal computer, containing the circuitry for the central processing unit, keyboard, mouse and monitor, together with slots for other devices.

• a guidepost resembling a hand with a pointing index finger

• a bank of keys on a musical instrument

• a narrow strip of wood on the neck of some stringed instruments (violin or cello or guitar etc) where the strings are held against the wood with the fingers

• a cardboard suitable for making posters

• a board in the floor

• the floor of an automobile

• a retractable fin keel used on sailboats to prevent drifting to leeward

• a square board with a handle underneath; used by masons to hold or carry mortar

• an academic cap with a flat square with a tassel on top