| Acronym | Meaning |
| SPM | Saint Pierre And Miquelon (ISO 3166 Trigram) |
| SKC | Clear Sky (METAR Code) |
| 4GL | Fourth-generation Programming Language |
| SOS | Somali Shilling (ISO 4217 Currency Code) |
| ICNI | Integrated Communication |
| EAST | Experimental Advanced Superconducting Tokamak |
| CAN | Canada (ISO 3166 Trigram) |
| CASS | Command Activated Sonobuoy System |
| J8 | Joint Force Structure |
| TLM | Traditional Latin Mass Or Tridentine Latin Mass |