an inhabitant; resident.

a person who regularly frequents a place; habitué

the denizens of a local bar.

British . an alien admitted to residence and to certain rights of citizenship in a country.

anything adapted to a new place, condition, etc., as an animal or plant not indigenous to a place but successfully naturalized.

to make a denizen of.

noun

alien , foreigner , immigrant

noun

citizen , dweller , habitant , indweller , inhabitant , inhabiter , liver , national , native , occupant , resider , subjectnotes:a denizen is someone who inhabits a particular place while a citizen is a native or naturalized member of a state , city , town , or other political community , resident