| Acronym | Meaning |
 | GCSE | General Certificate Of Secondary Education (UK) |
| NO | Nobelium |
| ONCE | Organizaci›n Nacional De Ciegos Espa?oles (Spanish |
| SHRA | Rain Showers (METAR Code) |
| SDSS | Sloan Digital Sky Survey |
| WAAF | Women's Auxiliary Air Force (WWII UK) |
| WAD | Weapons Alert Designator |
| SIFF | Successor IFF |
| HMSO | Her Majesty's Stationery Office |
| TI | Tigrinya Language (ISO 639-1 Code) |
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