| Abbreviation | Definition |
|---|---|
| MEF | Major Equipment Files |
| MEF | Marine Expeditionary Force |
| MEF | Minimum Essential Force |
| MEFPAKA | Manpower and Equipment Force Packaging |
| MEIP | Military Extension Internship Program |
| MEL | Maintenance Expenditure Limit |
| MEL | Master Events List |
| MEL | Minimum Equipment List |
| MEL | Mobile Equipment Load |
| MELF | Middle East Land Forces |
| MELIOS | Mini-Eyesight Laser Infrared Observation Set |
| MELO | Main Engine Light-Off |
| MEM | Micro-Electro-Mechanical |
| M-E-M | Model-Exercise-Model |
| MEMO | Memorandum |
| MEMO | Mission Essential Maintenance Only |
| MEMS | Micro Electro Mechanical System |
| MEMV | Model- Exercise- Model- Validate Approach |
| MEMV | Model-Exercise-Model-Validate approach |
| MENS | Mission Element Need Statement |