bicycle vs ride

bicycle and ride both are nouns.

As verbs, ride is a hypernym of bicycle; that is, ride is a word with a broader meaning than bicycle:

bicycle (noun)	ride (noun)
a wheeled vehicle that has two wheels and is moved by foot pedals	a journey in a vehicle (usually an automobile)
	a mechanical device that you ride for amusement or excitement

bicycle (verb)	ride (verb)
ride a bicycle	sit and travel on the back of animal, usually while controlling its motions
	be carried or travel on or in a vehicle
	continue undisturbed and without interference
	move like a floating object
	harass with persistent criticism or carping
	be sustained or supported or borne
	have certain properties when driven
	be contingent on
	lie moored or anchored
	sit on and control a vehicle
	climb up on the body
	ride over, along, or through
	keep partially engaged by slightly depressing a pedal with the foot
	copulate with