changing vs dynamic

changing is not a noun while dynamic is a noun.

Word	Noun	Adjective	Verb	Adverb
changing	No	Yes	No	No
dynamic	Yes	Yes	No	No

changing (noun)	dynamic (noun)
	an efficient incentive

changing (adjective)	dynamic (adjective)
marked by continuous change or effective action	characterized by action or forcefulness or force of personality
	(used of verbs (e.g. `to run') and participial adjectives (e.g. `running' in `running water')) expressing action rather than a state of being
	of or relating to dynamics