captive vs creature

captive and creature both are nouns.

Word	Noun	Adjective	Verb	Adverb
captive	Yes	Yes	No	No
creature	Yes	No	No	No

As nouns, creature is a hypernym of captive; that is, creature is a word with a broader meaning than captive:

Other hypernyms of captive include animal, animate being, beast, brute, fauna.

captive (noun)	creature (noun)
an animal that is confined	a living organism characterized by voluntary movement
a person who is confined; especially a prisoner of war	a living being
a person held in the grip of a strong emotion or passion	a person who is controlled by others and is used to perform unpleasant or dishonest tasks for someone else

captive (adjective)	creature (adjective)
giving or marked by complete attention to
being in captivity