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

• collar of esses
• collar of SS
• collars
• collar stud
• collar studs
• collar-work
• collar-works
• collat.
• collatable
• collate
• collated
• collateral
• collateral damage
• collateralisation
• collateralise
• collateralised
• collateralises
• collateralising
• collaterality
• collateralization
• collateralize
• collateralized
• collateralizes
• collateralizing
• collaterally