| Acronym | Meaning |
| PDRY | People's Democratic Republic Of Yemen (obsolete Since 1990) |
| NETCU | (UK) National Extremism Tactical Co-ordination Unit |
| CIO | Chief Information Officer - Congress Of Industrial Organizations |
| MCO | Monaco (ISO 3166 Trigram) -Movement Control Officer -Major Combat Operation |
| STAG | (U.S.) Strategy And Tactics Group |
| 2D | Two |
| CFG | Context-free Grammar - Control Flow Graph |
| RW | Rwanda (ISO 3166 And FIPS 10-4 Country Code Digram) |
| LEGAD | Legal Advice |
| SIF | Selective Identification Feature |