back number


Definition of back number

1 : an issue (as of a magazine) preceding the current one
2 : something that is out of date the building has become a back number in construction and design— Lee Graham

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First Known Use of back number

1812, in the meaning defined at sense 1

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The first known use of back number was in 1812

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Cite this Entry

“Back number.” Dictionary, Merriam-Webster, Accessed 18 Sep. 2020.

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