bicycle
/ˈbʌɪsɪk(ə)l/
noun
A vehicle consisting of two wheels held in a frame one behind the other, propelled by pedals and steered with handlebars attached to the front wheel.
verb
no object, with adverbial of direction Ride a bicycle.
Origin
Mid 19th century: from bi- ‘two’ + Greek kuklos ‘wheel’.
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My son is taking a bicycle trip this weekend. Please drive safely this holiday weekend, for his sake and for yours!