greet vs salute

greet is not a noun while salute is a noun.

Word	Noun	Adjective	Verb	Adverb
greet	No	No	Yes	No
salute	Yes	No	Yes	No

As verbs, salute is a hyponym of greet; that is, salute is a word with a more specific, narrower meaning than greet:

Other hyponyms of greet include shake hands, bob, curtsy, present, hail, herald, receive, welcome, say farewell, bid, wish.

greet (noun)	salute (noun)
	an act of honor or courteous recognition
	a formal military gesture of respect
	an act of greeting with friendly words and gestures like bowing or lifting the hat

greet (verb)	salute (verb)
react to in a certain way	greet in a friendly way
express greetings upon meeting someone	recognize with a gesture prescribed by a military regulation; assume a prescribed position
send greetings to	honor with a military ceremony, as when honoring dead soldiers
be perceived by	express commendation of
	propose a toast to
	become noticeable