| Acronym | Meaning |
 | ORR | Oak Ridge Reservation (U.S. DOE) - Office Of Rail Regulation (UK Government) - Office Of Refugee Resettlement - (CIA) Office Of Research And Reports - Operational Readiness Rate - Operational Readiness Review |
| ISM | Industrial |
| PASA | PolyAmide |
| WMI | Wildlife Management Institute |
| DIR | Defence Industrial Research |
| ASN | Associate Of Science In Nursing |
| REACT | Remote Electronically Activated Control Technology |
| CBS | Columbia Broadcasting System - Corps Battle Simulation |
| OIOC | Oriental & India Office Collections (in The British Library) |
| SL | Slovenian Language (ISO 639-1 Code) |
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