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mailbag

American  
[meyl-bag] / ˈmeɪlˌbæg /

noun

  1. a large bag used by mail carriers for carrying mail, usually equipped with a shoulder strap.

  2. a large bag or pouch used in transporting mail in bulk from general post offices to branch offices, from city to city, etc.

mailbag British  
/ ˈmeɪlˌbæɡ /

noun

  1. a large bag used for transporting or delivering mail

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of mailbag

First recorded in 1805–15; mail 1 + bag

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.

Editor’s note: Columnist Charlie Garcia answers his virtual mailbag every Friday.

From MarketWatch • Nov. 14, 2025

Editor’s note: Columnist Charlie Garcia shares select emails from his virtual mailbag every week.

From MarketWatch • Oct. 31, 2025

To show my appreciation, I’m going to sift through the January mailbag and take the person who sends me the best idea to dinner.

From Los Angeles Times • Jan. 3, 2024

A bye week is the perfect time for another Seahawks mailbag.

From Seattle Times • Oct. 5, 2023

Franz barked twice and snuffled his nose into the mailbag.

From "The Vanderbeekers of 141st Street" by Karina Yan Glaser

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.