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)

• smooth
• smoothable
• smooth-bore
• smooth-bored
• smooth-bores
• smooth-browed
• smooth calf
• smooth-chinned
• smooth-coated
• smooth dab
• smooth-dittied
• smoothed
• smoothen
• smooth endoplasmic reticulum
• smoothened
• smoothening
• smoothens
• smoother
• smoothers
• smoothest
• smooth-faced
• smooth hound
• smooth hounds
• smoothie
• smoothies