| Abbreviation | Definition |
|---|---|
| MERIT | Magistrates Early Referral Into Treatment |
| MERV | Mobile Explosive Removal Vehicle |
| MESA | Moving to end Sexual Assault |
| MEX | Mexican |
| MF | Master File |
| MFE | Major Factual Error |
| MFI | Magnetic Field Investigation |
| MFJ | March For Justice |
| MFJ | Measures For Justice |
| MFJ | Modified Final Judgement |
| MFPC | Matson Freyvogel, PC, Law Firm |
| MFR | Motion For Relief |
| MG | More Grief |
| MGCL | Mar Gregorios College Of Law |
| MGIA | Midwest Gang Investigators Association |
| MGJ | Mobilization For Global Justice |
| MGL | Massachusetts General Laws |
| MGM | Mentally Gifted Minor |
| MGM | Mentally Goofy Man |
| MGP | Mason, Griffin, & Pierson, P.C. |