| Abbreviation | Definition |
|---|---|
| SSDD | Same S***, Different Day |
| SSDD | System/ Segment Design Document |
| SSDF | South Sudan Defence Forces |
| SSDF | South Sudan Defense Forces |
| SSDR | Subsystem Design Review |
| SSDS | Ship Self Defense System |
| SSDS | Shore Side Data System |
| SSE | Satellite Communications (SATCOM) Systems Expert |
| SSE | Sensitive Site Exploitation |
| SSE | Space Support Element |
| SSE | System Status Evaluation |
| SSEB | Source Selection Evaluation Board |
| SSEKP | ingle-Shot Engagement Kill Probability |
| SSEKP | Single-Shot Engagement Kill Probability |
| SSES | Ships Signal Exploitation Space |
| SSET | Source Selection Evaluation Test |
| SSEW | Shipboard Security Engagement Weapons (course) |
| SSF | Single Stock Fund |
| SSF | Software Support Facility |
| SSF | Special Security Force |