denizen Definition

denizen
noun

1. formal
An inhabitant, either human or animal.
Thesaurus: inhabitant, resident, occupant, dweller, citizen.
2. biol.
A species of animal or plant which has become well established in a place to which it is not native and into which it has been introduced.
3. A naturalized foreign word or expression.
(Brit)
4. Someone who permanently lives in a country that is not their native country and who is accorded some rights of their adopted country.

Etymology: 15c: from French deinzein, from deinz within.