| Acronym | Meaning |
| YGCO | Yamaneko Group Of Comet Observers |
| GN | Giganewton - Guinea (ISO 3166 Digram) |
| BYOF | Bring Your Own Flask |
| MILSATCOM | Military Satellite Communications |
| NUL | Null Character (ASCII Code Of Control Character) - National Urban League |
| LST | Landing Ship |
| IS | Icelandic Language (ISO 639-1 Code) |
| YB | Ytterbium |
| SARS | Severe Acute Respiratory Syndrome |
| ARSPACE | U.S. Army Space Command |