1. The sill of a door; a horizontal piece of wood or stone that forms the bottom of a doorway and offers support when passing through a doorway
   - doorstep, threshold

Derived forms: doorsills

Type of: sill

Part of: door, doorway, room access, threshold

• Arlington
• arm
• arm bone
• arm candy
• arm exercise
• arm in arm
• arm pad
• arm's length
• arm-twisting
• armada
• Armadillidiidae
• Armadillidium
• armadillo
• Armageddon
• Armagnac
• armament
• armamentarium
• Armand Jean du Plessis
• Armata Corsa
• armature
• armband
• armchair
• armchair liberal
• armed
• armed bullhead