Birr

3 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Birr \Birr\, v. i. [imp. & p. p. {Birred}; p. pr. & vb. n.
     {Birring}.] [Cf. OE. bur, bir, wind, storm wind, fr. Icel.
     byrr wind. Perh. imitative.]
     To make, or move with, a whirring noise, as of wheels in
     motion.
     [1913 Webster]



From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Birr \Birr\, n.
     1. A whirring sound, as of a spinning wheel.
        [1913 Webster]
  
     2. A rush or impetus; force.
        [1913 Webster]

From WordNet (r) 2.0 [wn]:

  birr
       n 1: the basic unit of money in Ethiopia; equal to 100 cents
       2: sound of something in rapid motion; "whir of a bird's
          wings"; "the whir of the propellers" [syn: {whir}, {whirr},
           {whirring}]
       v : make a soft swishing sound; "the motor whirred"; "the car
           engine purred" [syn: {whizz}, {whiz}, {whirr}, {whir}, {purr}]