| Acronym | Meaning |
| COE | Cab Over Engine (see Truck) - Common Operating Environment (military) |
| PCIE | Peripheral Component Interconnect Express (computer Bus) |
| SIMPLE | Satellite Interactive Multimedia Platform For Low-cost Earth Stations - Savings Incentive Match Plan For Employees (as Used In SIMPLE IRA) - Standard Interface For Multiple Platform Link Evaluation (NATO STANAG 5602) |
| SSG | Guided Missile Submarine (retired US Navy Hull Classification) |
| SEK | Swedish Krona (ISO 4217 Currency Code) |
| UZS | Uzbek Som (ISO 4217 Currency Code) |
| W/ | With: Software W/Documentation. Typically Used In Advertising Or To Abbreviate Headings. Never Used In Formal Body Text. |
| SSW | Swati Language (ISO 639-2 Code) |
| NP | Neap Tide (nautical Charts) -Neptunium |
| RCS | Radar Cross-Section - Revision Control System - Reaction Control System |