| Acronym | Meaning |
| Q4 | Fourth Quarter |
| CST | Central Standard Time (UTC-6 Hours) |
| UK | United Kingdom (alsoFIPS 10-4 Country Code) - University Of Kentucky |
| OW | Old Wykehamist |
| ACUF | BGN Advisory Committee On Undersea Features |
| TCU | Texas Christian University |
| FY | West Frisian Language (ISO 639-1 Code) |
| HVU | High Value Unit (military) |
| CATS | Computer Active Technology Suspension |
| TRACON | Terminal Radar Approach Control |