toilet facility vs wash room

toilet facility and wash room both are nouns.

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

As nouns, toilet facility and wash room are synonyms defined as:

Other synonyms of toilet facility include comfort station, convenience, public convenience, public lavatory, public toilet, restroom.

toilet facility (noun)	wash room (noun)
a toilet that is available to the public	a toilet that is available to the public