Trespassing refers to the act of entering someone's land or property without permission.
In legal terms, trespassing is an unlawful act committed against the person or property of another.
The term "trespassing" also refers to:
1. Criminal trespass - entering a property despite knowing it's forbidden
2. Civil trespass - unauthorized entry that may lead to a lawsuit
3. Trespass to chattels - interfering with someone else's personal property