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inbox

American  
[in-boks] / ˈɪnˌbɒks /
Or in-box

noun

inboxes plural
  1. a boxlike tray, basket, or the like, as on a desk, for holding incoming mail, messages, or work.

  2. Computers. a folder for receiving and storing incoming emails or text messages.


inbox British  
/ ˈɪnˌbɒks /

noun

  1. (on a computer) a folder in a mailbox in which incoming messages are stored and displayed

  2. a US and Canadian name for in-tray

"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

Other Word Forms

Noun Inflected Forms

Etymology

Origin of inbox

First recorded in 1955–60; in ( def. ) + box 1 ( def. )

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.

See Examples For:

You can sign up here to have it waiting in your inbox each morning.

From MarketWatch Jul. 17, 2026

More than a month later, the results landed in my inbox.

From The Wall Street Journal Jul. 17, 2026

Sign up here to get great recommendations and a quick tour of the best of Slate in your inbox.

From Slate Jun. 24, 2026

I had spent the past couple of weeks corresponding with Raw Farm founder Mark McAfee, who’d filled my inbox with messages and PowerPoints extolling the virtues of his most important, and controversial, product:

From Salon Jun. 22, 2026

There’s an email from her waiting in my inbox.

From "Every Day" by David Levithan

He had hardly stepped on to the stage to address an event in London about his Invictus Games when the news started hitting inboxes on phones around the room.

From BBC Jul. 7, 2026

Altadena residents have flooded the inboxes and voicemails of state and local lawmakers, hoping the bill passes its first hurdle Wednesday when it’s up for a vote by two committees.

From Los Angeles Times Jul. 1, 2026

The agent promotes itself as a way to clear inboxes, send emails, manage calendars, and even check in for flights.

From Barron's Jan. 27, 2026

The seed of a breakthrough might sprout if employees warm up their brains with some busywork, like clearing inboxes or organizing calendars.

From The Wall Street Journal Jan. 8, 2026

In some cases, they abandoned vital operations by clicking through a spreadsheet or ignoring requests in their inboxes.

From Salon Dec. 16, 2025

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