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)

• handplay
• handplays
• hand-post
• hand-posts
• hand-press
• hand-presses
• handprint
• handprints
• hand-promise
• hand-promises
• hand puppet
• hand puppets
• handrail
• handrails
• hand relief
• hand-running
• hands
• handsaw
• handsaws
• hand's breadth
• hand's breadths
• hand-screen
• hand-screens
• hand-screw
• hand-screws