Duty applies to a task or responsibility imposed by one's occupation, rank, status, or calling. A duty (from "due" meaning "that which is owing"; Duty is what one performs, or avoids doing, in fulfillment of the permanent dictates of conscience, piety, right, or law:
One's duty to tell the truth, to raise children properly. It is surely the duty of the stronger members in a society to help those who are weak. I'd be failing in my duty if i didn't tell you about the risks involved in the project.
Jan 20, 2026noun duty (countable and uncountable, plural duties) (countable, uncountable) that which one is morally or legally obligated to do. Do your duty by me! -no, we don't have a duty to.
Duty, obligation refer to what one feels bound to do. Definition of duty noun in oxford advanced learner's dictionary.