■ 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
~ship noun ( historical ).
Origin
ME: from L. ~- , residere 'remain'.