sort by Rank | Alpha
| Possible Meanings | Rank |
| Mitsubishi UFJ Research and Consulting | *** |
| Matrox Users Resource Centre | *** |
| McGILL UNIVERSITY ROWING CLUB | ** |
| Midtown Urban Renaissance Corporation | ** |
| Multidisciplinary Undergraduate Research Conference | ** |
| Minneapolis University Rotary Club | ** |
| Matrox Users Resource Center | ** |
| Multicenter Urothelial and Renal Cancer | ** |
| Memorial University Recreation Complex | ** |
| Multi Unit Readiness Center | ** |
| Master Universitario in Revisione Contabile | * |
| Mid US Robotics Club | * |
| MacFarlane Urban Realty Company | * |
| MS Urban Research Center | * |
| Minority University Research Centers | * |
| Minister of Untidy Renegade Cubicles | * |
| Murrumbidgee Users Rehabilitation Committee | * |