birr

1. v. i. To make, or move with, a whirring noise, as of wheels in motion. Source: opted

2. n. A whirring sound, as of a spinning wheel. Source: opted

3. n. A rush or impetus; force. Source: opted

4. n. the basic unit of money in Ethiopia; equal to 100 cents Source: wordnet

5. n. sound of something in rapid motion Source: wordnet

6. v. make a soft swishing sound Source: wordnet

7. To make, or move with, a whirring noise, as of wheels in motion. 1. A whirring sound, as of a spinning wheel. 2. A rush or impetus; force. Source: webster

8. To make, or move with, a whirring noise, as of wheels inmotion. Source: adambom

9. n the basic unit of money in Ethiopia; equal to 100 cents n sound of something in rapid motion v make a soft swishing sound Source: ecdict

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