| Acronym | Meaning |
| TDRS | Tracking Data And Relay Satellite |
| ISRO | Indian Space Research Organisation |
| JUO | Joint Urban Operations |
| UNCSGN | United Nations Conference On The Standardization Of Geographical Names |
| NIPR | National Institute Of Polar Research (Japan) |
| RTG | Radio-isotope Thermoelectric Generator Also Used For Rubber Tyred Gantry Crane |
| NAFO | Northwest Atlantic Fisheries Organization |
| CEP | Circular Error Probable |
| PLI | Position Location Information - Private Lands Initiative - Professional Liability Insurance |
| PBI | PolyBenzImidazole |