The meaning of the Acronym NAS is...

NAS is

• Numerical Aerodynamic Simulator
• National Airspace System
• Naval Air Station
• Naval Air Squadron

More Meanings For NAS:

• Network-Attached Storage
• Network Access Server
• Network Access Server
• Network Access Server
• Network Attached Storage
• Network Access Services
• Network Audio System
• Network Audio Server
• Network Authentication Service
• Not Absolutely Sure
• NTFS (New Technology File System) Analog System
• Not Another School
• Nice And Slow
• National Airspace System
• North American Series

NAS is also in:

• Chat
• Drivers
• General
• Hardware
• Meteorology
• Networking
• Security
• SMS
• Software