What is the term used for the act of peeping?

The term used for the act of peeping is voyeurism. Voyeurism specifically refers to the practice of gaining pleasure from watching others when they are naked or engaged in sexual activities, often without their knowledge or consent. This behavior is typically considered a violation of privacy and can have legal implications, as it involves an observer taking pleasure from others' unawareness or vulnerability.

In contrast, the other terms relate to different behaviors: stalking involves persistent and unwanted attention that can cause fear or distress; harassment refers to repeated and unwanted behavior that is offensive or threatening; and intimidation generally involves instilling fear through threats or aggressive actions. Each of these terms describes distinct actions or patterns that do not specifically relate to the act of peeping in the same way that voyeurism does.