| Meaning | Category |
| Destroyer Minelayer (Minecraft, Minelayer, Destroyer) | Miscellaneous->Ship Types |
| Make My Day | Governmental->Military |
| Master of Management Development | Academic & Science->Academic Degrees |
| Materials Management Division | Business->Firms |
| Mathematics and Mechanics Department | Academic & Science->Universities |
| Mechanical Music Digest | Community->Media |
| Melbourne Mercury Debugger | Computing->Software |
| Memory Makin Divas | Computing->File Extensions |
| Merit Merit Distinction | Academic & Science->Universities |
| Microlithographic Mask Development program | Academic & Science->Electronics |
| Minami Daito, Japan | Regional->Airport Codes |
| Mini-Marketing Director | Business->Positions |
| Minimal Melanogenic Dose | Medical->Oncology |
| Moore Medical Corporation | Business->AMEX Symbols |
| Municipal Market Data | Business->General |
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