entrant vs trespasser

entrant and trespasser both are nouns.

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

As nouns, trespasser is a hyponym of entrant; that is, trespasser is a word with a more specific, narrower meaning than entrant:

entrant: someone who enters
trespasser: someone who intrudes on the privacy or property of another without permission

Other hyponyms of entrant include interloper, intruder.

entrant (noun)	trespasser (noun)
a commodity that enters competition with established merchandise	someone who intrudes on the privacy or property of another without permission
one who enters a competition
any new participant in some activity
someone who enters