duty - definition in the Learner's Dictionary - Cambridge Dictionaries Online

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English definition of “duty”

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duty

noun [C, U]
 
 
/ˈdjuːti/
RIGHT THING TO DO B1 something you must do because it is morally or legally right: a moral duty [+ to do sth] Rail companies have a duty to provide safe transport.Duty, obligation and responsibility
JOB B2 something you do as part of your job or because of your position: professional/official dutiesDuty, obligation and responsibility
on/off duty B2 If a doctor, police officer, etc is on duty, they are working, and if they are off duty, they are not working: I'm on duty tomorrow night.Work, working and the workplaceWorking hours and periods of work
TAX tax that you pay on something you buyTaxation
(Definition of duty from the Cambridge Learners Dictionary © Cambridge University Press)
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