What are WoW private servers?

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Tags

1. #right
2. #people
3. #setting
4. #client
5. #blizzard
6. #application
7. #particular
8. #server
9. #deployed
10. #settings
11. #original
12. #basically
13. #meaning
14. #servers
15. #connect
16. #without
17. #private
18. #copied