bicycle vs bike

bicycle and bike both are nouns.

As verbs, bicycle and bike are synonyms defined as:

Other synonyms of bicycle include pedal, wheel, cycle.

As nouns, bicycle and bike are synonyms defined as:

bicycle and bike: a wheeled vehicle that has two wheels and is moved by foot pedals

Other synonyms of bicycle include cycle, wheel.

bicycle (noun)	bike (noun)
a wheeled vehicle that has two wheels and is moved by foot pedals	a motor vehicle with two wheels and a strong frame
	a wheeled vehicle that has two wheels and is moved by foot pedals

bicycle (verb)	bike (verb)
ride a bicycle	ride a bicycle