- IGS
- International Gps Service (Governmental » US Government)** Internet Go Server (Internet)* International Games System (Community » Sports)* International Glaciological Society (Academic & Science » Ocean Science)* Ipswich Grammar School (Community » Educational)* Institute of Geological Sciences (Academic & Science » Geology)* Instrument Guidance System (Governmental » Transportation)* Interchange Group Separator (Computing » General)* Image Systems Grayscale (Computing » File Extensions)* Instrument Guiding System (Governmental » Military)* Intermediate General Support (Governmental » Military)* 2D or 3D CAD model Initial Graphics Exchange Specification format (Computing » File Extensions)* Inner Gulf Shelf (Academic & Science » Ocean Science)* Insoluble Glue Substances (Academic & Science » Chemistry)
Abbreviations dictionary. 2012.