possess vs exhibit

possess is not a noun while exhibit is a noun.

Word	Noun	Adjective	Verb	Adverb
possess	No	No	Yes	No
exhibit	Yes	No	Yes	No

As verbs, exhibit is a hyponym of possess; that is, exhibit is a word with a more specific, narrower meaning than possess:

possess (noun)	exhibit (noun)
	something shown to the public
	an object or statement produced before a court of law and referred to while giving evidence

possess (verb)	exhibit (verb)
have ownership or possession of	walk ostentatiously
have as an attribute, knowledge, or skill	give an exhibition of to an interested audience
enter into and control, as of emotions or ideas	to show, make visible or apparent
	show an attribute, property, knowledge, or skill