bike vs bicycle

bike and bicycle both are nouns.

Word	Noun	Adjective	Verb	Adverb
bike	Yes	No	Yes	No
bicycle	Yes	No	Yes	No

As nouns, bike and bicycle are synonyms defined as:

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

Other synonyms of bike include cycle, wheel.

As verbs, bike and bicycle are synonyms defined as:

Other synonyms of bike include cycle, pedal, wheel.

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

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