Composed of 侵入 (intrusion, trespassing) + 者 (person). The word carries a clear negative connotation — the person is somewhere they should not be.
Common collocations
- 侵入者を捕まえる — to catch an intruder
- 侵入者を検知する — to detect an intruder
- 不法侵入者 — illegal trespasser
Related words
- 侵入 — intrusion, trespassing (the act itself)
- 不審者 — suspicious person; broader term, not necessarily someone who has already entered
- 泥棒 — thief, burglar; implies intent to steal