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.


© Webster 1913.

Birr, n.


A whirring sound, as of a spinning wheel.


A rush or impetus; force.


© Webster 1913.