Indefinite leave to remain (ILR) or permanent residency (PR) is an immigration status granted to a person who does not hold the right of abode in the United Kingdom (UK), but who has been admitted to the UK without any time limit on their stay and who is free to take up employment, engage in business, self-employment, or study. When indefinite leave is granted to persons outside the United Kingdom it is known as indefinite leave to enter (ILE).