linguistics vs reduplicate

linguistics is a noun but reduplicate is not a noun.

Word	Noun	Adjective	Verb	Adverb
linguistics	Yes	No	No	No
reduplicate	No	No	Yes	No

linguistics (noun)	reduplicate (noun)
the scientific study of language
the humanistic study of language and literature

linguistics (verb)	reduplicate (verb)
	make or do or perform again
	form by reduplication