message board
Americannoun
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a website or section of a website that is used for public discussion of a specific topic and on which users can submit or read messages.
You should post your questions on a parenting message board and get support from other parents.
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an online discussion group that is maintained on such a website.
To participate in the message board, you must be a registered user.
noun
Etymology
Origin of message board
First recorded in 1990–95
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.
While that model was undergoing some AI training in May, it was noticed by an internal OpenAI team that there had been "an agent engaging in message board activity and instances of disallowed internet access."
From BBC ● Aug. 26, 2026
Anthropic’s Mythos practiced deception, while OpenAI models swapped tips on a secret message board for future exploits.
From The Wall Street Journal ● Aug. 9, 2026
Meanwhile Ofcom is involved in an ongoing dispute with online message board 4chan over its refusal to pay a £520,000 fine.
From BBC ● Jul. 9, 2026
It was the same message board that helped launch the 2021 retail buying spree in shares of GameStop, another unloved consumer company that had been counted out—and heavily shorted—by Wall Street.
From The Wall Street Journal ● Jun. 25, 2026
I studied the message board and soon found what I had come to see.
From "It All Comes Down to This" by Karen English
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
