| Acronym | Meaning |
 | NCR | National Cash Register Co. |
| JIVE | Joint Institute For VLBI (Very Long Baseline Interferometry) In Europe |
| HSPH | Harvard School Of Public Health |
| RUC | Royal Ulster Constabulary |
| CCK | Cholecystokinin -Cocos (Keeling) Islands (ISO 3166 Trigram) |
| NWF | National Wildlife Federation |
| CIAO | Critical Infrastructure Assurance Office - Component-Integrated ACE ORB |
| BU | Bulgaria (FIPS 10-4 Country Code) - Burma (ISO 3166 Digram; Obsolete Since 1989) |
| AB | Abkhaz Language (ISO 639-1 Code) |
| ABB | ASEA Brown Boveri (Swiss-Swedish Multinational Company) |
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