| Acronym | Meaning |
 | SC | Cruiser Submarine (US Navy Hull Classification) - Saint Kitts And Nevis (FIPS 10-4 Country Code; From Saint Christopher) - Seychelles (ISO 3166 Digram) - South Carolina (postal Symbol) |
| 4G | Fourth-generation Mobile Telephone System |
| ACINT | Acoustic Intelligence |
| CES | Czech Language (ISO 639-2 Code) |
| JFO | Journal Of Field Ornithology |
| AKST | Alaska Standard Time (UTC-9 Hours) |
| UESAC | Uppsala-ESO Survey Of Asteroids And Comets |
| EI | Exbi |
| QNH | Regional Mean Sea Level Atmospheric Pressure (aeronautical Q Code) |
| BI | Bislami Language (ISO 639-1 Code) |
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