a viewer who enjoys seeing the sex acts or sex organs of others
"The police arrested the man after they caught him peering through the blinds to watch his neighbor's intimate moments."
A person who derives sexual pleasure from secretly observing other people, especially when such people are engaged in some sexual activity.
"The security guard had to eject the man from the changing room area because he was clearly acting like a voyeur by hiding behind the curtain and filming women showering."
In plain English: A voyeur is someone who secretly watches other people doing private things without their knowledge.
"The neighbor was caught spying on his new neighbors through their window like a true voyeur."
Usage: A voyeur is someone who gains sexual gratification by secretly watching others engage in intimate activities without their knowledge or consent. This term specifically refers to the act of observation rather than participation and often carries legal implications regarding privacy violations.
The word voyeur comes from the French term meaning "one who sees." It entered English to describe a person who secretly observes others, typically in private situations.