peeper vs creature

peeper and creature both are nouns.

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

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

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

peeper (noun)	creature (noun)
an animal that makes short high-pitched sounds	a living organism characterized by voluntary movement
an informal term referring to the eye	a living being
a viewer who enjoys seeing the sex acts or sex organs of others	a person who is controlled by others and is used to perform unpleasant or dishonest tasks for someone else