The meaning of the Acronym SP is...

SP is

• Sub Project
• Static Pressure
• Standard or Peculiar
• Spin
• Spare
• Solar Physics
• Single Precision
• Single Pole
• Signal Processor
• Shuttle Projects Office (KSC)
• Shoulder Pitch

More Meanings For SP:

• Single Precision
• Stack Pointer
• System Procedure
• Service Pack
• Compressed file archive (Splint)
• Space
• Stops Processing
• Special Performance
• Single Processor
• Security Potential
• Secure Proxy
• Service Pack
• Smart Pointer
• Starting Pixel
• Social Points

SP is also in:

• Assembly
• Chat
• Drivers
• File Extensions
• General
• Hardware
• Security
• Software