Meaning of “duty” in the English Dictionary

"duty" in British English

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dutynoun [ C or U ]

uk /ˈdʒuː.ti/ us /ˈduː.t̬i/

duty noun [ C or U ] (RESPONSIBILITY)

B1 something that you have to do because it is part of your job, or something that you feel is the right thing to do:

The duty of the agency is to act in the best interests of the child.
[ + to infinitive ] I felt it was my duty to tell them the truth.
You have a duty to yourself to take a break once in a while.
He only went to see her out of duty (= because he thought he should).
You should report for duty (= arrive at work) at 8 a.m. on Monday.
What time are you off/on duty (= when do you finish/start work) tomorrow?
be duty bound to do sth

to have to do something because it is your duty:

We are duty bound to justify how we spend our funds.

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(Definition of “duty” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"duty" in Business English

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uk /ˈdjuːti/ us /ˈduːti/ plural duties

[ C or U ] LAW a responsibility to do something because it is legally or morally right to do it:

Every lawyer has a strong sense of duty and responsibility.
a duty to do sth They have a duty to ensure customers receive sound advice.
be sb's duty It is your duty to announce any conflict of interest.
do your duty I felt that I had done my duty in reporting the incident to the police.
It was alleged that the company had failed in its duty to advise customers of the technical aspects of the paint system.

[ C, usually plural ] HR something that you have to do because it is part of your job:

His duties included photographing engineering projects such as bridges and airfields.
perform/undertake/do duties People employed under similar conditions should not be paid less than others performing similar duties.
teaching/cleaning/administrative duties

[ U ] HR one of the periods of time that a working day is divided into during which someone works:

night/day duty Daniels volunteered for night duty so he could take classes at the University of Arizona.

[ C or U ] TAX, COMMERCE a tax paid on goods that are bought or imported:

duty on sth He said that duty on a bottle of wine in France is equivalent to 2p compared with £1.16 here.
impose/raise/increase duty The duty on house purchases of £250,000 or more was increased to 2.5%.
a cut/rise/increase in duty
fuel/tobacco/petrol duty
off duty

not working, and not responsible for dealing with things that happen at work:

He summoned his entire unit to a crisis meeting, even though many were off duty.
When your Estate Manager goes off duty, the alarm system will be monitored by a remote service.
on duty

working, and responsible for dealing with things that happen at work:

During office hours there is always a planning officer on duty who deals with enquiries.
The night shift goes on duty at 10 pm.

dutyadjective [ before noun ]

uk /ˈdjuːti/ us /ˈduːti/

HR used to describe the person who is on duty at a particular time:

(Definition of “duty” from the Cambridge Business English Dictionary © Cambridge University Press)