birr

nouns

the basic unit of money in Ethiopia; equal to 100 cents
birr
is a type of (narrower)
monetary unit in Ethiopia
Ethiopian monetary unit
sound of something in rapid motion
"whir of a bird's wings"; "the whir of the propellers"
birr, whir, whirr, whirring

verbs

make a soft swishing sound
"the motor whirred"; "the car engine purred"
birr, purr, whir, whirr, whiz, whizz