lighthouse vs beacon

lighthouse and beacon both are nouns.

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

As nouns, lighthouse and beacon are synonyms defined as:

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

Other synonyms of lighthouse include beacon light, pharos.

lighthouse (noun)	beacon (noun)
a tower with a light that gives warning of shoals to passing ships	a radio station that broadcasts a directional signal for navigational purposes
	a tower with a light that gives warning of shoals to passing ships
	a fire (usually on a hill or tower) that can be seen from a distance

lighthouse (verb)	beacon (verb)
	guide with a beacon
	shine like a beacon