exhibit vs possess

exhibit is a noun but possess is not a noun.

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

As verbs, possess is a hypernym of exhibit; that is, possess is a word with a broader meaning than exhibit:

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

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