Niš definition by Webster's New World
Niš definition by American Heritage Dictionary
niš - Computer Definition
(Network Information Services) A directory service developed by Sun for TCP/IP network resources. Formerly known as Yellow Pages, NIS became a de facto Unix standard used by many Unix vendors. In 1992, NIS+ was a completely redesigned version. In addition to NIS, LDAP and DNS have been used for name resolution and directory services. See LDAP and DNS.