instant messaging

American  

[in-stuhnt mes-ij-ing] / ˈɪn stənt ˈmɛs ɪdʒ ɪŋ /

noun

Digital Technology.

1. a system for exchanging typed electronic messages instantly via the internet or a cellular network, using a shared software application on a personal computer or mobile device. IM

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instant messaging British  

noun

1. Abbreviation: IM.  computing the online facility that allows the instant exchange of written messages between two or more people using different computers or mobile phones

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instant messaging Cultural  

1. A computer communications program that allows people to send and receive typed messages very rapidly. It is often used for online “chats.”

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Etymology

Origin of instant messaging

First recorded in 1995–2000

Example Sentences

After downloading OpenClaw, users connect it to existing artificial intelligence models of their choice, then give it simple instructions through instant messaging apps, as if to a friend or colleague.

From Barron's • Mar. 13, 2026

The brothers used online platforms including KakaoTalk, a Korean instant messaging app, to reach their customers.

From Los Angeles Times • Sep. 12, 2025

Officials for the county, around 200 miles away from the capital Beijing, said an investigation was under way, in a post shared on China's instant messaging app, WeChat.

From BBC • May 21, 2025

Many now use social media and instant messaging platforms such as WhatsApp and Facebook to connect with customers.

From Seattle Times • May 25, 2024

That was before the spread of instant messaging and Facebook.

From "A Deadly Wandering: A Mystery, a Landmark Investigation, and the Astonishing Science of Attention in the Digital Age" by Matt Richtel