pharos vs lighthouse

pharos and lighthouse both are nouns.

Word	Noun	Adjective	Verb	Adverb
pharos	Yes	No	No	No
lighthouse	Yes	No	No	No

As nouns, pharos and lighthouse are synonyms defined as:

pharos and lighthouse: a tower with a light that gives warning of shoals to passing ships

Other synonyms of pharos include beacon, beacon light.

pharos (noun)	lighthouse (noun)
a tower with a light that gives warning of shoals to passing ships	a tower with a light that gives warning of shoals to passing ships