voyeur vs spectator

voyeur and spectator both are nouns.

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

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

voyeur: 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 voyeur include looker, viewer, watcher, witness.

voyeur (noun)	spectator (noun)
a viewer who enjoys seeing the sex acts or sex organs of others	a woman's pump with medium heel; usually in contrasting colors for toe and heel
	a close observer; someone who looks at something (such as an exhibition of some kind)