| Acronym | Meaning |
| KARNAC | Knowledge Aided Retrieval In Activity Context |
| PLC | Public Limited Company (British) |
| LI | Lithium |
| SCFM | Standard Cubic Foot Per Minute (unit Of Measurement Of Fluid Flow) |
| TLD | Thermoluminescent Dosimeter - Top-Level Domain |
| BUAV | British Union For The Abolition Of Vivisection |
| IA | Interlingua Language (ISO 639-1 Code) |
| NSA | U.S. National Security Agency - Naval Support Activity - No Strings Attached |
| NNE | North North-East |
| LRC | Local RTI Component - Logistics Readiness Center |