| Acronym | Meaning |
| NSG | National System For Geospatial-Intelligence |
| SIMPLE | Satellite Interactive Multimedia Platform For Low-cost Earth Stations - Savings Incentive Match Plan For Employees (as Used In SIMPLE IRA) - Standard Interface For Multiple Platform Link Evaluation (NATO STANAG 5602) |
| SB | Sexy Bitch - Sexy Bastard - Sexy Boy |
| INLA | Irish National Liberation Army |
| JMS | Java Message Service |
| SEAWIFS | Sea-Viewing Wide Field Of View Sensor (satellite Instrument) |
| GFN | Global Footprint Network |
| QSL | Qu?bec Sign Language |
| DRET | Defence Research Establishment Toronto (obsolete 2002) |
| MX | Mail Exchange -Mexico (FIPS 10-4 Country Code; ISO 3166 Digram) -Missile EXperimental |