variants or in-box
plural inboxes or in-boxes
1
: a box or tray (as on a desk) for holding incoming interoffice mail
2
: a computer folder devoted to incoming email
One of my favorite rituals soon became scanning our email inbox, looking for your photographs … and reading the letters you sent …Amy Virshup

Examples of inbox in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
When a company that builds fire trucks, rail-maintenance machinery, or electric vehicle chargers is invited to bid on a big contract, the request that lands in its inbox can run to thousands of pages of technical specifications. Jeremy Kahn, Fortune, 3 Sep. 2026 Billing sits in one system, cash application in another, relationship history lives in the CRM, and the collections context that would explain all of it is in somebody’s inbox. David Zwick, Forbes.com, 2 Sep. 2026 Sign up to get expert tips on the best of Southern California's beaches, trails, parks, deserts, forests and mountains in your inbox every Thursday. Jaclyn Cosgrove, Los Angeles Times, 27 Aug. 2026 Earlier this week, researchers outlined an attack that used a secret input provided by Microsoft 365 Copilot for enterprise to cause the AI assistant to exfiltrate a password present in the user’s inbox. Dan Goodin, ArsTechnica, 20 Aug. 2026 See All Example Sentences for inbox

Word History

First Known Use

1958, in the meaning defined at sense 1

Time Traveler
The first known use of inbox was in 1958

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Cite this Entry

“Inbox.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/inbox. Accessed 4 Sep. 2026.

Kids Definition

: a receptacle for incoming letters between offices in an organization
also : a computer folder for incoming email
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