| Abbreviation | Definition |
|---|---|
| MASR | chine Accountant Seaman Recruit |
| MASR | Machine Accountant Seaman Recruit |
| MATE | Mate |
| MATE | te |
| MATT1 | Mess Attendant 1st Class (non Petty Officer) |
| MATT1 | Mess Attendant 1st Class (non Petty Officer) |
| MATT2 | Mess Attendant 2nd Class (non Petty Officer) |
| MATT2 | Mess Attendant 2nd Class (non Petty Officer) |
| MATT3 | Mess Attendant 3rd Class (non Petty Officer) |
| MATT3 | Mess Attendant 3rd Class (non Petty Officer) |
| MB | Masters Of The Bands |
| MB | sters Of The Bands |
| MC | Military Colleges |
| MCBH | Marine Corps Base Hawaii |
| MCM | Master Chief Musician |
| MCPO | ster Chief Petty Officer |
| MCRN | Mars Congressional Republic Navy |
| MCRN | Martian Congressional Republic Navy |
| ME1 | Metalsmith Petty Officer 1st Class |
| ME1 | talsmith Petty Officer 1st Class |