burr² or bur /bûr/

1. The rough sound of r pronounced in the throat, as by many Northumberland people
2. A continual humming sound as of a machine

1. To speak with a burr
2. To whisper hoarsely, to murmur

• tsars
• TSB
• umble-pie
• umble-pies
• umbles
• umbo
• umbonal
• umbonate
• umbonation
• umbonations
• umbones
• umbos
• umbra
• umbracula
• umbraculate
• umbraculiform
• umbraculum
• umbrae
• umbrage
• umbraged
• umbrageous
• umbrageously
• umbrageousness
• umbrageousnesses
• umbrages