duty
n. C / Un. something that you must do because it is your job or because you feel it is the right thing to do.
n. a moral or legal obligation; a responsibility or task required by one's position or circumstances.
It is my duty to report any safety problems I see.
The security guard felt it was his duty to stay at his post until the replacement arrived.
While the legal requirements are clear, the ethical duty of a physician often extends beyond mere compliance with hospital regulations to include the holistic well-being of the patient.
From Middle English duete, from Middle English dewe + Middle English -te. Equivalent to due + -ty.
Often used with the verbs 'do', 'perform', or 'fulfill'. When referring to a tax on goods, it is usually countable.
I have the duty of clean the roomI have the duty to clean the roomWhen followed by an action, duty typically takes a 'to-infinitive' rather than 'of' + gerund.