| Acronym | Definition |
|---|
| SMSM➣Synchronized Multi-Spark Module (electronic ignition devices) |
| SMSM➣Straight Men who have Sex with Men |
| SMSM➣Marist Missionary Sister (religious order) |
| SMSM➣Space-Mapping Super Model |
| SMSM➣Statutory Minimum Solvency Margin (insurance) |
| SMSM➣Southern Maine Scale Modelers (Biddeford, Maine) |