medicine vs explore

medicine is a noun but explore is not a noun.

Word	Noun	Adjective	Verb	Adverb
medicine	Yes	No	Yes	No
explore	No	No	Yes	No

medicine (noun)	explore (noun)
the learned profession that is mastered by graduate training in a medical school and that is devoted to preventing or alleviating or curing diseases and injuries
punishment for one's actions
(medicine) something that treats or prevents or alleviates the symptoms of disease
the branches of medical science that deal with nonsurgical techniques

medicine (verb)	explore (verb)
treat medicinally, treat with medicine	inquire into
	travel to or penetrate into
	inquire into a subject in detail
	examine (organs) for diagnostic purposes