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

• comb-out
• comb over
• combover
• combovers
• Combretaceae
• Combretastatin®
• combretum
• combretums
• combs
• comburgess
• comburgesses
• combust
• combusted
• combustibilities
• combustibility
• combustible
• combustibleness
• combustiblenesses
• combustibles
• combusting
• combustion
• combustion chamber
• combustion chambers
• combustions
• combustious