/ ˈbaɪsɪkl; NAmE / noun , verb
■ noun
(also informal bike ) a road vehicle with two wheels that you ride by pushing the pedals with your feet :
He got on his bicycle and rode off.
We went for a bicycle ride on Sunday.
■ verb
[ v , usually + adv. / prep. ] ( old-fashioned ) to go somewhere on a bicycle
—compare bike , cycle
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WORD ORIGIN
mid 19th cent.: from bi- two + Greek kuklos wheel.