military greeting vs salute

military greeting and salute both are nouns.

Word	Noun	Adjective	Verb	Adverb
military greeting	Yes	No	No	No
salute	Yes	No	Yes	No

As nouns, military greeting and salute are synonyms defined as:

military greeting (noun)	salute (noun)
a formal military gesture of respect	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

military greeting (verb)	salute (verb)
	greet in a friendly way
	recognize with a gesture prescribed by a military regulation; assume a prescribed position
	honor with a military ceremony, as when honoring dead soldiers
	express commendation of
	propose a toast to
	become noticeable