1. A square board with a handle underneath; used by masons to hold or carry mortar
   - hawk 
2. An academic cap with a flat square with a tassel on top

Derived forms: mortarboards

Type of: board, cap

Part of: academic costume

Encyclopedia: Mortarboard

• ninth
• ninth cranial nerve
• Ninth of Ab
• Ninth of Av
• Nintoo
• Nintu
• Ninurta
• Niobe
• niobite
• niobium
• Niobrara
• Niobrara River
• nip
• nip and tuck
• nip off
• nipa
• Nipa fruticans
• nipa palm
• nipper
• nipperkin
• nipping
• nipple
• nipple shield
• Nippon
• Nipponese