peeper vs spectator

peeper and spectator both are nouns.

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

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

peeper: a viewer who enjoys seeing the sex acts or sex organs of others
spectator: a close observer; someone who looks at something (such as an exhibition of some kind)

Other hypernyms of peeper include looker, viewer, watcher, witness.

peeper (noun)	spectator (noun)
an animal that makes short high-pitched sounds	a woman's pump with medium heel; usually in contrasting colors for toe and heel
an informal term referring to the eye	a close observer; someone who looks at something (such as an exhibition of some kind)
a viewer who enjoys seeing the sex acts or sex organs of others