water closet vs can

water closet and can both are nouns.

Word	Noun	Adjective	Verb	Adverb
water closet	Yes	No	No	No
can	Yes	No	Yes	No

As nouns, can is a hypernym of water closet; that is, can is a word with a broader meaning than water closet:

Other hypernyms of water closet include bathroom, john, lav, lavatory, privy, toilet.

water closet (noun)	can (noun)
a toilet in Britain	airtight sealed metal container for food or drink or paint etc.
	a room or building equipped with one or more toilets
	a plumbing fixture for defecation and urination
	the fleshy part of the human body that you sit on
	a buoy with a round bottom and conical top
	the quantity contained in a can

water closet (verb)	can (verb)
	preserve in a can or tin
	terminate the employment of; discharge from an office or position