Source : Webster's Revised Unabridged Dictionary (1913)

Bike \Bike\, n. [Ethymol. unknown.]
   A nest of wild bees, wasps, or ants; a swarm. [Scot.] --Sir
   W. Scott.

Source : WordNet®

bike
     n 1: a motor vehicle with two wheels and a strong frame [syn: {motorcycle}]
     2: a wheeled vehicle that has two wheels and is moved by foot
        pedals [syn: {bicycle}, {wheel}, {cycle}]

bike
     v : ride a bicycle [syn: {bicycle}, {cycle}, {pedal}, {wheel}]