a person who enters (for a university place, competition, race etc)

person entering competition, starting new activity

a person who immigrates

person from a foreign land

a person who is late

person who has just arrived in area

a person who is not (considered to be) an accepted member of a group, society etc

person who is foreign to something

a person one does not know; person in a place where he or she is not known

person who is unfamiliar