linguistics vs linguistic competence

linguistics and linguistic competence both are nouns.

Word	Noun	Adjective	Verb	Adverb
linguistics	Yes	No	No	No
linguistic competence	Yes	No	No	No

linguistics (noun)	linguistic competence (noun)
the scientific study of language	(linguistics) a speaker's implicit, internalized knowledge of the rules of their language (contrasted with linguistic performance)
the humanistic study of language and literature