birr (n.)

  1. the basic unit of money in Ethiopia; equal to 100 cents

  2. sound of something in rapid motion; whir of a birds wings; the whir of the propellers

    [ Syn: whir , whirr , whirring ]

    birr (v.)

  1. make a soft swishing sound; the motor whirred; the car engine purred

    [ Syn: whizz , whiz , whirr , whir , purr ]

The dictionary is based on the WordNet Electronic Lexical Database.
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