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)

• documenting
• document reader
• document readers
• documents
• docus
• docusoap
• docusoaps
• dod
• DoD
• doddard
• dodded
• dodder
• doddered
• dodderer
• dodderers
• dodderier
• dodderiest
• doddering
• dodders
• doddery
• doddier
• doddies
• doddiest
• dodding
• doddipoll