semaphore vs communicate

semaphore is a noun but communicate is not a noun.

Word	Noun	Adjective	Verb	Adverb
semaphore	Yes	No	Yes	No
communicate	No	No	Yes	No

As verbs, communicate is a hypernym of semaphore; that is, communicate is a word with a broader meaning than semaphore:

Other hypernyms of semaphore include intercommunicate.

semaphore (noun)	communicate (noun)
an apparatus for visual signaling with lights or mechanically moving arms

semaphore (verb)	communicate (verb)
convey by semaphore, of information	transmit thoughts or feelings
send signals by or as if by semaphore	transmit information
	be in verbal contact; interchange information or ideas
	receive Communion, in the Catholic church
	administer Communion; in church
	join or connect
	transfer to another