| Acronym | Meaning |
| CAS | Chemical Abstracts Service - Chief Of The Air Staff - Close Air Support |
| THA | Thailand (ISO 3166 Trigram) |
| SEC | U.S. Securities And Exchange Commission -Security - Southeastern Conference |
| CY | Welsh Language (ISO 639-1 Code) |
| KIR | Kyrgyz Language (ISO 639-2 Code) |
| KR | Kanuri Language (ISO 639-1 Code) |
| HE | Hebrew Language (ISO 639-1 Code) |
| ISBN | International Standard Book Number (ISO 2108) |
| IOT&E | Integrated Operational Test And Evaluation |
| BH | Bohrium |