| Acronym | Meaning |
| DC | Da Capo - Italian Democrazia Cristiana - Digital Compass - Direct Current -District Of Columbia (postal Symbol) -Douglas Aircraft Company - Dublin Core - Duty Cycle |
| ACR | Advanced Concepts And Requirements |
| JU | Juan De Nova Island (FIPS 10-4 Territory Code) |
| ETT | Embedded Training Team |
| GRP | Graphite Reinforced Plastic |
| ZAF | South Africa (ISO 3166 Trigram) |
| MTOE | Modified Table Of Organization And Equipment (emm-toe) |
| OSETI | Optical SETI |
| RCCO | Royal Canadian College Of Organists |
| CCSIL | Command And Control Simulation Interface Language (cecil) |