| Abbreviation | Definition |
|---|---|
| SABRE | Semi-automated Business Research Environment |
| SAC | Session Admission Control |
| SAD | Smart Ack Dropper |
| SADL | Situational Awareness Data Link |
| SAFE | Security and Freedom through Encryption |
| SAG | Systems Administrator Group |
| SAGE | Semi-Automatic Ground Environment |
| SAID | Security Association IDentifier |
| SAID | Specific Adaptation to Imposed Demand |
| SAID | System Average Interruption Duration |
| SAIDI | System Average Interruption Duration Index |
| SAIFI | System Average Interruption Frequency Index |
| SAK | Server Appliance Kit |
| SAM | Scalable Active Management |
| SAM | Scalable ADSL (Asynchronous Digital Subscriber Line) Modem |
| SAM | Storage Application Model |
| SAMAN | Simulation Augmented by Measurement and Analysis for Networks |
| SAME | Stripe And Mirror Everything |
| SAMI | Synchronized Access Media Interchange |
| SAMI | Synchronized Accessible Media Interchange |