The meaning of the Acronym NIS is...

NIS is

• National Identification Service
• Nothing Is Safe

More Meanings For NIS:

• Network Information Service
• Network Information Services
• Network Information Server
• Norton Internet Security
• Normal Insulating and Superconducting
• National Irrigation System
• Not In Stacks
• National Information System
• Network Information Slackware
• Network Information Sunsite
• Network Information Sdn
• Not In Service
• A Nothing Incredibly Special
• Norwegians In Space
• Naval Investigation Service

NIS is also in:

• Electronics
• Farming
• General
• Networking
• Security
• Unfiled