Noun: trespasser 'tres,pas-u(r) [N. Amer], tres-pu-su(r) [Brit]
- Someone who intrudes on the privacy or property of another without permission
"The homeowner called the police when he spotted a trespasser in his backyard";
- intruder, interloper
Derived forms: trespassers
Type of: entrant, persona non grata, unwelcome person
Encyclopedia: Trespasser