| Acronym | Meaning |
| GSK | GlaxoSmithKline |
| BEL | Belgium (ISO 3166 Trigram) |
| LF | Low Frequency |
| HCCI | Homogeneous Charge Compression Ignition |
| BRN | Brunei (ISO 3166 Trigram) |
| YIPPIE | Youth International Party + Suffix |
| CU | Cuba (FIPS 10-4 Country Code; ISO 3166 Digram) |
| MIL | Man-In-the-Loop |
| IMPAC | International Merchant Purchase Authorization Card |
| LNO | Liaison Officer |