rallying vs exploit

rallying and exploit both are nouns.

Word	Noun	Adjective	Verb	Adverb
rallying	Yes	Yes	No	No
exploit	Yes	No	Yes	No

As nouns, exploit is a hypernym of rallying; that is, exploit is a word with a broader meaning than rallying:

Other hypernyms of rallying include effort, feat.

rallying (noun)	exploit (noun)
the act of mobilizing for a common purpose	a notable achievement
the feat of mustering strength for a renewed effort

rallying (adjective)	exploit (adjective)
rousing or recalling to unity and renewed effort

rallying (verb)	exploit (verb)
	use or manipulate to one's advantage
	draw from; make good use of
	work excessively hard