linguistics vs theme

linguistics and theme both are nouns.

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

linguistics (noun)	theme (noun)
the scientific study of language	a unifying idea that is a recurrent element in literary or artistic work
the humanistic study of language and literature	the subject matter of a conversation or discussion
	an essay (especially one written as an assignment)
	(music) melodic subject of a musical composition
	(linguistics) the form of a word after all affixes are removed

linguistics (verb)	theme (verb)
	provide with a particular theme or motive