sort by Rank | Alpha
| Possible Meanings | Rank |
|---|
| Midwest Independent System Operator | **** |
| Master Input Slave Output | *** |
| Multiple Input Single Output | *** |
| Military Intelligence Special Operations | *** |
| Microsoft IBM SAP and Oracle | *** |
| Multi Input Single Output | *** |
| Monterey Inner Shelf Observatory | *** |
| Minimally invasive selective osteotomy | ** |
| Midwest Independent System Operators | ** |
| Maui Island Soaring Operation | ** |
| Millions of Instructions per Second | ** |
| Merged Information Services Organizations | ** |
| Mixed Identity Student Organization | ** |
| Manufacturing Inspection Satellite Office | ** |
| Multidisciplinary Instrumentation in Support of Oceanography | * |
| MANSFIELD INTERNATIONAL STUDENT ORGANIZATION | * |
| Mansfield International Students Organization | * |
| Management Information System Office | * |
| Manual Input Station Operator | * |