message board

noun

1
: a board or sign on which messages or notices are displayed
an electronic message board
2
: a public electronic forum that allows users to post or read messages or to post or download files and that is accessed by computer over a network (such as the Internet)
Even as bullpen problems loom …, they haven't spawned the typical degree of urgency and panic on Internet message boards and sports radio shows.—Bill Simmons

Examples of message board in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
In the most infamous example, a swarm of 1,000 Open AI agents escaped their sandbox, commandeered online message boards to communicate with each other, and breached the systems of the open source AI community Hugging Face. — Frank Landymore, Futurism, 14 Oct. 2026 In all, some 700 agents found a way to communicate, using an unauthorized message board, and coordinate an attack on the computer systems of fellow AI company Hugging Face. — Laurent Belsie, Christian Science Monitor, 13 Oct. 2026 That information eventually made its way onto message boards and social media. — Trey Wallace Outkick, FOXNews.com, 13 Oct. 2026 Internet message boards are filled with comments about the experiences of ex-Angelenos living in Fresno. — Terry Castleman, Los Angeles Times, 7 Oct. 2026 See All Example Sentences for message board

Word History

First Known Use

1795, in the meaning defined at sense 1

Time Traveler
The first known use of message board was in 1795

Rhymes for message board

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Browse Nearby Words

message
message board
message stick
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Cite this Entry

“Message board.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/message%20board. Accessed 19 Oct. 2026.

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Kids Definition

message board

noun
: bulletin board sense 2
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