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HUBLOT Posted 11 years ago
Grammar

Do duty

do duty as/for something
to serve or act as a substitute for something else
A drinking glass can do duty as a flower vase.

http://www.oxfordlearnersdictionaries.com/us/definition/american_english/duty?q=duty

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Is this idiom uncommon in American English?

http://www.macmillandictionary.com/dictionary/american/duty

In this dictionary, "do duty" is labled BRITISH.
  

Top answer

As an American, I'd say it was uncommon. We might say that it can serve as a vase or more simply be used as a vase.

  • As an American, I'd say it was uncommon.
  • We might say that it can serve as a vase or more simply be used as a vase.
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4 Answers
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As an American, I'd say it was uncommon. We might say that it can serve as a vase or more simply be used as a vase.
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HUBLOTIs this idiom uncommon in American English?
I’ve never heard it before.
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Thanks a lot, BarbaraPA and AG. Emotion: smile
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HUBLOTdo duty as/for somethingto serve or act as a substitute for something else• A drinking glass can do duty as a flower vase.http://www.oxfordlearnersdictionaries.com/us/definition/american_english/duty?q=duty ~~~~~~~~~~Is this idiom uncommo

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