referent vs denotative

referent is a noun but denotative is not a noun.

Word	Noun	Adjective	Verb	Adverb
referent	Yes	Yes	No	No
denotative	No	Yes	No	No

referent (noun)	denotative (noun)
something referred to; the object of a reference
the first term in a proposition; the term to which other terms relate
something that refers; a term that refers to another term

referent (adjective)	denotative (adjective)
having reference	having the power of explicitly denoting or designating or naming
	in accordance with fact or the primary meaning of a term