| Acronym | Meaning |
| MBCS | Multi-Byte Character Set |
| CSIP | Commercial Stable Image Platform (AMD) |
| HEMP | High-Altitude Electromagnetic Pulse |
| G1 | Assistant Chief-of-Staff |
| FACS | Formal Aspects Of Computing Science - Fluorescent-activated Cell Sorting |
| OCI | Occitan Language (ISO 639-2 Code) |
| TLS | Timor-Leste (ISO 3166 Trigram) -Times Literary Supplement |
| VSR | Very Special Relativity |
| MBTI | Myers-Briggs Type Indicator |
| CML | Chemical -Chronic Myelogenous Leukemia (formerly Chronic Myeloid Leukemia) |