trespasser
/ˈtrɛsˌpæsər/Definitions
1. noun
A person who trespasses; an unauthorized person who enters or stays in a place that belongs to someone else or is restricted.
“The park ranger caught a trespasser taking pictures near the wildlife sanctuary.”
2. noun
In law, a person who commits the crime of trespassing.
“The trespasser was charged with violating the private property rights of the homeowner.”
3. verb
To commit the crime of trespassing; to enter or stay in a place without permission.
“The neighbors accused the trespasser of entering their backyard without permission.”