| Abkürzung | Erklärung | Kategorie |
|---|---|---|
| SIL | Safety Integrity Level = Sicherheits-Integritätslevel | daten |
| SIL | SILo | daten |
| ISIL | Islamic State of Iraq and the Levant | |
| KSIL | KalkSILo | daten |
| SIL. | SILofono (Xylphon) | daten |
| SILL | Strategic Illuminator Laser (US-Waffe) | daten |
| SILEX | Semiconductor Laser Inter-Satellite Link Experiment (1998) | daten |