waterwheel vs wheel

waterwheel and wheel both are nouns.

Word	Noun	Adjective	Verb	Adverb
waterwheel	Yes	No	No	No
wheel	Yes	No	Yes	No

As nouns, wheel is a hypernym of waterwheel; that is, wheel is a word with a broader meaning than waterwheel:

waterwheel: a wheel that rotates by direct action of water; a simple turbine
wheel: a simple machine consisting of a circular frame with spokes (or a solid disc) that can rotate on a shaft or axle (as in vehicles or other machines)

Other hypernyms of waterwheel include hydrokinetic engine.

As nouns, wheel is a hypernym of waterwheel; that is, wheel is a word with a broader meaning than waterwheel:

waterwheel: a wheel with buckets attached to its rim; raises water from a stream or pond
wheel: a simple machine consisting of a circular frame with spokes (or a solid disc) that can rotate on a shaft or axle (as in vehicles or other machines)

waterwheel (noun)	wheel (noun)
a wheel that rotates by direct action of water; a simple turbine	a simple machine consisting of a circular frame with spokes (or a solid disc) that can rotate on a shaft or axle (as in vehicles or other machines)
a wheel with buckets attached to its rim; raises water from a stream or pond	a circular helm to control the rudder of a vessel
	an instrument of torture that stretches or disjoints or mutilates victims
	game equipment consisting of a wheel with slots that is used for gambling; the wheel rotates horizontally and players bet on which slot the roulette ball will stop in
	a handwheel that is used for steering
	a wheeled vehicle that has two wheels and is moved by foot pedals
	forces that provide energy and direction

waterwheel (verb)	wheel (verb)
	change directions as if revolving on a pivot
	move along on or as if on wheels or a wheeled vehicle
	wheel somebody or something
	ride a bicycle