wash room vs privy

wash room and privy both are nouns.

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

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

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

wash room (noun)	privy (noun)
a toilet that is available to the public	a small outbuilding with a bench having holes through which a user can defecate
	a room or building equipped with one or more toilets

wash room (adjective)	privy (adjective)
	(followed by `to') informed about something secret or not generally known
	hidden from general view or use