sort by Rank | Alpha
| Possible Meanings | Rank |
| Multnomah County Sheriffs Office | *** |
| Medical Child Support Order | *** |
| Multnomah County Sheriff Office | ** |
| Manukau City Symphony Orchestra | ** |
| Midland County Sheriffs Office | ** |
| S-Methyl-L-cysteine sulfoxide | ** |
| Michigan Chamber Symphony Orchestra | ** |
| Montgomery County Sheriff Office | ** |
| Member of the College of Syntonic Optometry | ** |
| Monroe County Sheriff Office | ** |
| Marketing Customer Service Officer | ** |
| Marshall County Sheriff Office | ** |
| MGE Coordinate System Operations | ** |
| Mobile County Sheriff Office | ** |
| Medical Center of Southeast Oklahoma | * |
| Myanmar Central Statistic Organisation | * |
| Malheur County Sheriff Office | * |
| Marine Cadet Staff Officer | * |
| Master of Counseling Student Org | * |
| Milwaukee County Sheriff Office | * |
| Monroe County Sheriffs Office | * |
| Montreal Caribbean Social Organization | * |
| Marion County Sheriffs Office | * |
| Media and Community Support Officer | * |
| Myanmar Central Statistical Office | * |
| Marion County Sheriff Office | * |