Biro® /bīˈrō/

A kind of ballpoint pen

• subduable
• subdual
• subduals
• subduce
• subduced
• subduces
• surcoats
• surculi
• surculose
• surculus
• surculuses
• surd
• surdities
• surdity
• surds
• sure
• sure card
• sured
• sure enough
• sure-enough
• sure-fire
• surefooted
• surefootedly
• surefootedness
• surefootednesses