| Acronym | Meaning |
| SICS | Swedish Institute Of Computer Science |
| NI | Nicaragua (ISO 3166 Digram) - Nigeria (FIPS 10-4 Country Code) |
| NODEF | NATO Oceanographic Data Exchange Format |
| RSJ | Rolled Steel Joist (construction) |
| ROH | Ring Of Honor |
| OASIS | Objects And Agents For Information Systems And Simulation - Organization For The Advancement Of Structured Information Standards |
| PCB | See Entry |
| PRFG | Partial Fog (METAR Code) |
| GG | Georgia (FIPS 10-4 Country Code) |
| VLAD | Vertical Line Array DIFAR |