appreciator vs appreciate

appreciator is a noun but appreciate is not a noun.

Word	Noun	Adjective	Verb	Adverb
appreciator	Yes	No	No	No
appreciate	No	No	Yes	No

appreciator (noun)	appreciate (noun)
a person who is fully aware of something and understands it

appreciator (verb)	appreciate (verb)
	gain in value
	increase the value of
	be fully aware of; realize fully
	recognize with gratitude; be grateful for
	hold dear