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Related to birr: birthday cake
1. A whirring sound.
2. Strong forward momentum; driving force.
intr.v. birred, birr·ing, birrs
To make a whirring sound.
n. pl. birr or birrs
See Table at currency.
to make or cause to make a whirring sound
1. a whirring sound
2. force, as of wind
3. vigour; energy
[Old English byre storm, related to Old Norse byrr favourable wind]
(Currencies) the standard monetary unit of Ethiopia, divided into 100 cents
[C20: from Amharic]
n., pl. birr.
the basic monetary unit of Ethiopia.
Past participle: birred
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|Noun||1.||birr - the basic unit of money in Ethiopia; equal to 100 cents|
Ethiopian monetary unit - monetary unit in Ethiopia
cent - a fractional monetary unit of several countries
|2.||birr - sound of something in rapid motion; "whir of a bird's wings"; "the whir of the propellers"|
sound - the sudden occurrence of an audible event; "the sound awakened them"
|Verb||1.||birr - make a soft swishing sound; "the motor whirred"; "the car engine purred"|