trespass vs trespasser

trespass and trespasser both are nouns.

Word	Noun	Adjective	Verb	Adverb
trespass	Yes	No	Yes	No
trespasser	Yes	No	No	No

trespass (noun)	trespasser (noun)
entry to another's property without right or permission	someone who intrudes on the privacy or property of another without permission
a wrongful interference with the possession of property (personal property as well as realty), or the action instituted to recover damages

trespass (verb)	trespasser (verb)
pass beyond (limits or boundaries)
break the law
enter unlawfully on someone's property
commit a sin; violate a law of God or a moral law
make excessive use of