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

• wastrifes
• wastry
• wat
• watap
• wataps
• watch
• WATCH
• watchability
• watchable
• watch after
• watch and ward
• watch bill
• watch bills
• watchbox
• watchboxes
• watch cap
• watch caps
• watchcase
• watchcases
• watch chain
• watch chains
• watch clock
• watch clocks
• Watch Committee
• watch crystal