| Abbreviation | Definition |
|---|---|
| SNAP | Secondary Nuclear Auxiliary Power |
| SNAP | System Nuclear Auxiliary Power |
| SNAP | Systems For Nuclear Auxiliary Power |
| SNB | Beech Kansan aircraft |
| SNCO | Senior Non Commissioned Officer |
| SNCO | Staff Noncommissioned Officer |
| SNCOA | Senior Non-Commissioned Officer Academy |
| SNCOA | Staff Noncommissioned Officer Academies |
| SNCOIC | Senior Non Commissioned Officer In Charge |
| SND | Send |
| SNF | Secret No Foreign |
| SNF | Spent Nuclear Fuel |
| SNF | Strategic Nuclear Forces |
| SNIC | Saturday Nights In Clovis |
| SNIE | Special National Intelligence Estimates |
| SNJ | North American Aircraft Company TEXAN, W W II Trainer Aircraft |
| SNK | Sneak |
| SNK | Sunk |
| SNL | Shot Noise Level |
| SNL | Standard Nomenclature List |