from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A messaging system that uses a computer network, especially the Internet, to transfer messages organized in thematic groups.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • proper n. A world-wide distributed discussion system consisting of newsgroups classified hierarchically by subject.


From USENIX group of computer programmers using the operating system Unix, from users of Unix (Wiktionary)



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