inbox

noun

in·​box ˈin-ˌbäks 

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

Subscribe here to receive the newsletter in your inbox each week. — Marcus Jones, IndieWire, 2 July 2026

Sign up to receive the newsletter in your inbox every morning. — Britannica Editors, Encyclopedia Britannica, 2 July 2026

Also, click here to subscribe to our newsletter bringing our top stories of the week straight to your inbox. — Kelsey Monstrola, USA Today, 2 July 2026

To sign up, scroll to the footer of the Merrell homepage, enter your email address, and wait for your custom coupon to arrive in your inbox. — Madison Flager, Condé Nast Traveler, 2 July 2026

Word History

First Known Use

1958, in the meaning defined at sense 1

Kids Definition

in-box

noun

ˈin-ˌbäks 

: a receptacle for incoming letters between offices in an organization

also : a computer folder for incoming email