whirr

1 definition found

whirr - WordNet (r) 2.1 (2005) :

  whirr
      n 1: sound of something in rapid motion; "whir of a bird's
           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,
           birr, purr]
      2: make a vibrant sound, as of some birds [syn: churr,
         whirr]