modify vs modifier

modify is not a noun while modifier is a noun.

Word	Noun	Adjective	Verb	Adverb
modify	No	No	Yes	No
modifier	Yes	No	No	No

modify (noun)	modifier (noun)
	a gene that modifies the effect produced by another gene
	a content word that qualifies the meaning of a noun or verb
	a person who changes something
	a moderator who makes less extreme or uncompromising

modify (verb)	modifier (verb)
make less severe or harsh or extreme
add a modifier to a constituent
cause to change; make different; cause a transformation