The meaning of the Acronym SA is...

SA is

• Sibling Alert
• Smart Ass

More Meanings For SA:

• Silver Azide
• Structured Audio
• Sampling Actuation
• Southern Andes
• Short Arc
• Souslin's Axiom
• Solo Axis
• Sheet of Assertion
• Spaced Antenna
• Simple- Adjoint
• Supplied Air
• Small Area
• Spatial Analysis
• Summer Absenteeism
• Student Administration

SA is also in:

• Chemistry
• Electronics
• Geology
• Mathematics
• Ocean Science
• Physics
• Universities