IPA: //baɪk//
KK: /baɪk/
To ride a two-wheeled vehicle that you pedal with your feet.
I like to bike in the park on weekends.
Past: biked
Past Participle: biked
A two-wheeled vehicle that you pedal to move, or a motorized two-wheeled vehicle.
I ride my bike to school every day.
The word 'bike' is a shortening of 'bicycle', which is formed from 'bi-' (meaning two) and 'cyclus' (from Greek 'kyklos', meaning circle or wheel). Thus, 'bicycle' refers to a vehicle with two wheels, and 'bike' is a colloquial term derived from it.
Think of 'bi-' meaning two and 'cycle' referring to wheels — that's why a bike is a vehicle with two wheels.