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)

• tatt
• tatted
• tatter
• tatterdemalion
• tatterdemalions
• tatterdemallion
• tattered
• tattering
• tatters
• Tattersall
• Tattersall check
• Tattersall's
• Tattersalls
• tattery
• tattie
• tattie-bogle
• tattiebogle
• tattie-bogles
• tattie-claw
• tattie-claws
• tattie-howking
• tattie-lifting
• tattier
• tatties
• tattie-shaw