public toilet vs toilet facility

public toilet and toilet facility both are nouns.

Word	Noun	Adjective	Verb	Adverb
public toilet	Yes	No	No	No
toilet facility	Yes	No	No	No

As nouns, public toilet and toilet facility are synonyms defined as:

public toilet and toilet facility: a toilet that is available to the public

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

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