Ground Control Station 
Glasgow Coma Scale 
ground control stations 
Glascow Coma Scale 
Guidance and Control Section 
Gate Controlled Switch 
Ground Communications System 
Glasgow Coma Score 
Global Communications Service 
Ground Control System 
Guidance Cutoff Signal 
Gate Controller Switch 
general communications system 
Generic Checkout System 
Geo-Common Subsystem 
Gonzales Consulting Services 
Governmental Communication Systems 
Greek Computer Society 
Group Control System 
Gun Computer System 
Gadsden City Schools 
Game Conservation Society 
gamma-glutamylcysteine synthetase 
ganglion cells 
Gaston County Schools 
gastric cancers 
gastric carcinomas 
Gates County Schools 
Gawa Christian School 
Gaylord Community Schools