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

When downloaded, OpenClaw can be connected to existing AI models and given simple instructions through instant messaging apps, as if to a friend or colleague.

From Barron's • Mar. 30, 2026

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

From Los Angeles Times • Sep. 12, 2025

The concept was simple but well ahead of its time: bring chatbots to instant messaging platforms.

From Slate • Aug. 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

I’d been at my desk, eavesdropping on my old friends’ moronic instant messaging session, but I got to my feet pretty quick.

From "Anthem of a Reluctant Prophet" by Joanne Proulx