Real Dictionary

trespass
verb: If someone trespasses, they go onto someone else's land without their permission.

trespass in American English
to go beyond the limits of what is considered right or moral; do wrong; transgress
intransitive verb: to commit a trespass
noun: an unlawful act causing injury to the person, property, or rights of another, committed with force or violence, actual or implied

trespass in British English
to go or intrude (on the property, privacy, or preserves of another) with no right or permission
noun: any unlawful act committed with force or violence, actual or implied, which causes injury to other people, their property, or their rights