| Abbreviation | Definition |
|---|---|
| MREB | Mississauga Real Estate Board |
| MREG | Mack Real Estate Group |
| MREG | Maryland Real Estate Group |
| MREG | McEachern Real Estate Group |
| MREN | The Manhattan Real Estate Network |
| MREP | Modern Real Estate Practice |
| MREP | Modern Real Estate Professionals |
| MRES | Master of Real Estate Society |
| MRES | Multi Real Estate Services |
| MRI | Monthly Revenue Income. |
| MRSH | Marsh |
| MSAR | Metro South Association Of Realtors |
| MSGB | Mah Sing Group Berhad (Malaysia) |
| MTAR | Middle Tennessee Association of REALTORS |
| MTCS | Multi-Tenant Commercial Space |
| MTRS | Multi-Tenant Residential Space |
| MUFB | Multi Unit Freehold Block |
| MWV | Microwave Oven |
| NAAR | Northern Arizona Association of REALTORS |
| NABOR | Naples Area Board of Realtors |