wash room vs toilet

wash room and toilet both are nouns.

Word	Noun	Adjective	Verb	Adverb
wash room	Yes	No	No	No
toilet	Yes	No	No	No

As nouns, toilet is a hypernym of wash room; that is, toilet is a word with a broader meaning than wash room:

Other hypernyms of wash room include facility, bathroom, can, john, lav, lavatory, privy.

wash room (noun)	toilet (noun)
a toilet that is available to the public	the act of dressing and preparing yourself
	a room or building equipped with one or more toilets
	a plumbing fixture for defecation and urination
	misfortune resulting in lost effort or money