| Acronym | Meaning |
| TTYL | Talk To You Later (Internet Slang) |
| FENS | Federation Of European Neuroscience Societies |
| CY | Welsh Language (ISO 639-1 Code) |
| TPTB | The Powers That Be (often Used To Refer To The People Responsible For The Content Of TV Series Or Movies) |
| BRASS | Breathe |
| WY | Wyoming (postal Symbol) |
| GIB | Gibraltar (ISO 3166 Trigram) |
| MF | Millifarad |
| MHRA | (UK) Medicines And Healthcare Products Regulatory Agency |
| MEO | Medium Earth Orbit - Most Efficient Organization |