adopter vs adopt

adopter is a noun but adopt is not a noun.

Word	Noun	Adjective	Verb	Adverb
adopter	Yes	No	No	No
adopt	No	No	Yes	No

adopter (noun)	adopt (noun)
a person who adopts a child of other parents as his or her own child

adopter (verb)	adopt (verb)
	take into one's family
	take on a certain form, attribute, or aspect
	take up the cause, ideology, practice, method, of someone and use it as one's own
	put into dramatic form
	take up and practice as one's own
	choose and follow; as of theories, ideas, policies, strategies or plans
	take on titles, offices, duties, responsibilities