birr¹ /bûr or bir/ (esp Scot and US)

1. Impetus, force, vigour
2. A violent push (Scot)
3. Emphasis, stress in speaking
4. Any sharp whirring sound

To whirr

• stump works
• stumpy
• stums
• stun
• Stundism
• Stundist
• stung
• stun grenade
• stun grenades
• stun gun
• stun guns
• stunk
• stunkard
• stunned
• stunner
• stunners
• stunning
• stunningly
• stunnings
• stuns
• stunsail
• stuns'l
• stunt
• stunted
• stuntedness