resident

Concise Oxford English Dictionary © 2008 Oxford University Press:
resident/ˈrezɪdənt/

▶noun

• 1 a person who lives somewhere on a long-term basis.

  ■ a bird, butterfly, or other animal of a species that does not migrate.

  ■ Brit. a guest in a hotel who stays for one or more nights.

  ■ US a pupil who boards at a boarding school.

• 2 N. Amer. a medical graduate engaged in specialized practice under supervision in a hospital.

• 3 an intelligence agent in a foreign country.

• 4 historical a British government agent in any semi-independent state, especially the Governor General's representative at the court of an Indian state.

▶adjective

• 1 living somewhere on a long-term basis.

  ■ having quarters on the premises of one's work.

  ■ attached to and working regularly for a particular institution.

  ■ (of a bird, butterfly, or other animal) non-migratory.

• 2 (of a computer program, file, etc.) immediately available in computer memory, rather than having to be loaded from elsewhere.

– derivatives
residentship noun (historical).

– origin ME: from L. resident-, residere ‘remain’.