What is another word for peeper?
Pronunciation: [pˈiːpə] (IPA) 
There are several synonyms you can use for the word "peeper." One common synonym is "spy" or "snoop", which refers to those who watch others without their knowledge or consent. Another synonym is "looker," or "gazer," which describes those who look intently at something or someone. "Voyeur" is a more specific synonym, often associated with those who derive pleasure from watching others engaged in private activities. Meanwhile, "observer" or "witness" can pertain to people who see something happening, whether intentionally or not. Depending on the context, there can be other suitable alternatives to "peeper" which can best describe what you want to say.
