IPA: /ˈnjuːzɡruːp/
KK: /ˈnjuːzɡruːp/
A section on the Internet where people can post and discuss messages about a specific topic.
I joined a newsgroup about photography to share tips and learn from others.
Newsgroup is formed from "news" (from Old English "news", meaning new information or reports) and "group" (from Old French "groupe", meaning a collection or assembly). The word "newsgroup" refers to a collection of discussions or information about new topics shared among a group of people.
Think of 'new information' ('news') being shared among a 'collection' ('group') of people — that's what a newsgroup is.
No commonly confused words.