back number
Americannoun
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an out-of-date issue of a serial publication.
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Informal. anything out-of-date.
noun
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an issue of a newspaper, magazine, etc, that appeared on a previous date
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informal a person or thing considered to be old-fashioned
Etymology
Origin of back number
An Americanism dating back to 1805–15
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The Force did hit back, number eight Richard Brown creeping over after a quick pick-and-go from captain Matt Hodgson.
From BBC • Jun. 5, 2013
The fact that GM is back, number one, I think shows the kind of turnaround that’s possible when it comes to American manufacturing.”
From BusinessWeek • Feb. 2, 2012
“The adults are being sent back, number one.”
From Washington Post
Navy's most famed fighter plane�the hunchbacked, stubby Grumman F4F Wildcat�is a back number in aerial warfare.
From Time Magazine Archive
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"Say, Barney," he said after he had removed his hat, "ain't it surprising what a back number a feller like Charles Finkman is?"
From The Competitive Nephew by Glass, Montague
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.