The meaning of the Acronym SG is...

SG is

• So Great
• Select a Girl
• Single Guy
• Shy Guy
• Spree Girl
• Speedy Gentleman

More Meanings For SG:

• Shattered Galaxy
• Star Graph
• Seed Growth
• Seeded Gel
• Seaborgium
• Spheroidal Graphite
• Strat Gas
• Synchronous Generator
• Screen Grid (vacuum tube)
• Sea Grant
• Specific Gravity
• Study Guide
• Silicon Graphics
• Savage Garden
• Stourbridge Glass

SG is also in:

• Astronomy
• Botany
• Chemistry
• Electronics
• Firms
• Ocean Science
• Physics
• Universities