linguistics vs universal

linguistics and universal both are nouns.

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

linguistics (noun)	universal (noun)
the scientific study of language	coupling that connects two rotating shafts allowing freedom of movement in all directions
the humanistic study of language and literature	a behavioral convention or pattern characteristic of all members of a particular culture or of all human beings
	(logic) a proposition that asserts something of all members of a class
	(linguistics) a grammatical rule (or other linguistic feature) that is found in all languages

linguistics (adjective)	universal (adjective)
	adapted to various purposes, sizes, forms, operations
	of worldwide scope or applicability
	applicable to or common to all members of a group or set