| Acronym | Meaning |
| DP | Decision Point - Dynamic Programming |
| COIN | Counter-Insurgency (military) |
| RADC | Region Air Defence Commander |
| ORI | Oriya Language (ISO 639-2 Code) |
| PA | Panama (ISO 3166 Digram) - Paraguay (FIPS 10-4 Country Code) -Partial Agonist -Pennsylvania (postal Symbol) - Petampere -PolyAmide (Nylon) - Prince Albert Piercing - Public Address (vocal Amplification System) - Public Affairs |
| LARC | Livermore Advanced Research Computer (cf. LLNL) |
| AADT | Annual Average Daily Traffic Flow |
| PBDE | PolyBrominated Diphenyl Ether |
| CL | Chlorine |
| SVG | Scalable Vector Graphics |