Duty
Duty noun - Work that you are obliged to perform for moral or legal reasons.
Usage example: the duties of the job
Work is a synonym for duty in responsibility topic. In some cases you can use "Work" instead a noun "Duty", when it comes to topics like profession, job.
Work
Work noun - The action for which a person or thing is specially fitted or used or for which a thing exists.
Usage example: the work of a movie director is to tell a story through a series of striking images
Duty is a synonym for work in business topic. You can use "Duty" instead a noun "Work", if it concerns topics such as job.
Mutual synonyms
How words are described
Both words in one sentence
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She's tallish, dark-haired, beautiful but not a bombshell, well-loved and respected by everyone, soft-spoken but not to be trifled with, and very dedicated to her work and duty as a policewoman.
Source: Manga / You're Under Arrest! - Having to work dorm guard duty or some similar job that is typically on a rotating watch (the main purpose being to keep unauthorized people, usually members of the opposite gender, out of the dorms).
Source: Punishment Detail -
It is your duty and your job to stay here and do this work." "To pay for having been born last?
Source: The Runt at the End
Cite this Source
Work and Duty. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/duty/work
Duty & Work. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/duty/work>.
Work or Duty. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/duty/work.
Google Ngram Viewer shows how "duty" and "work" have occurred on timeline