Birr
Part of speech: noun
Definition: The currency of Ethiopia, divided into 100 santims
Whirr
Part of speech: verb
Definition: To move or vibrate (something) with a buzzing sound.To make a sibilant buzzing or droning sound.To cause (something) to make such a sound.
Part of speech: noun
Definition: A sibilant buzz or vibration; the sound of something in rapid motion.A bustle of noise and excitement.