| Acronym | Meaning |
 | IN | Indium |
| AWACS | Airborne Warning And Control System |
| IOC | Initial Operational Capability - Intergovernmental Oceanic Commission - International Olympic Committee - International Ornithological Congress |
| COSCOM | Corps Support Command (military) |
| CSG | Corps Support Group |
| MIKE | Monitoring Of Illegal Killing Of Elephants |
| YGO | Yu-Gi-Oh! |
| MER | Mars Exploration Rover |
| MBCS | Multi-Byte Character Set |
| UNDE | Union Of National Defence Employees (Canada) |
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