province

function, office, duty, province mean the acts or operations expected of a person or thing. function implies a definite end or purpose or a particular kind of work <the function of language is two-fold: to communicate emotion and to give information — Aldous Huxley>. office is typically applied to the function or service associated with a trade or profession or a special relationship to others <they exercise the offices of the judge, the priest, the counsellor — W. E. Gladstone>. duty applies to a task or responsibility imposed by one's occupation, rank, status, or calling <it is the judicial duty of the court, to examine the whole case — R. B. Taney>. province applies to a function, office, or duty that naturally or logically falls to one <I felt it was not my province to inquire — Anne Brontë>.