abacus /abˈə-kəs/

1. A counting frame, consisting of horizontal rods along which movable beads can be slid
2. A level tablet on the capital of a column, supporting the entablature (architecture)

• bandy
• bandy-ball
• bandy-bandy
• bandying
• bandyings
• bandy-legged
• bandyman
• bandymen
• bane
• baneberries
• baneberry
• baned
• baneful
• banefully
• banefulness
• banefulnesses
• banes
• bang
• Bangalore torpedo
• banged
• banger
• bangers
• bang for one's buck
• bang goes
• bangin'