| Acronym | Meaning |
 | PBD | PolyButaDiene |
| MORS | Military Operations Research Society |
| NCIS | National Criminal Intelligence Service (British) - Naval Criminal Investigative Service (U.S. Navy) |
| LLAD | Low Level Air Defence |
| KH | Kilohenry |
| HUMINT | Human Intelligence (military Parlance) |
| TSO | Tsonga Language (ISO 639-2 Code) |
| AOA | Argonne National Laboratory -Angolan Kwanza (ISO 4217 Currency Code) -Award Of Arms (heraldry) |
| CSICOP | Committee For The Scientific Investigation Of Claims Of The Paranormal (became The Committee For Skeptical Inquiry In 2006) |
| KL | Kilolitre |
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