| Acronym | Meaning |
| LI | Lithium |
| AGC | Apollo Guidance Computer - Automatic Gain Control |
| TS | Tsonga Language (ISO 639-1 Code) |
| PPP | Point-to-Point Protocol - Purchasing Power Parity |
| AN | Aragonese Language (ISO 639-1 Code) |
| OGC | Open Geospatial Consortium |
| DSC | Differential Scanning Calorimeter - Digital Selective Calling - Digital Still Camera - Distinguished Service Cross - Doctor Of Surgical Chiropody (obsolete) - Document Structure Convention (PostScript Programming) - Dynamic Stability Control |
| WSUS | Windows Server Update Services |
| TEAL | Tasman Empire Airways Limited |
| RUSI | Royal United Services Institute For Defence Studies |