sort by Rank | Alpha
| Possible Meanings | Rank |
| Messenger Courier Association of America | **** |
| Michigan Community Action Agency | **** |
| Marketing Communication and Advertising | **** |
| Measurement Control Automation Association | **** |
| Mountain Chapter of the American | **** |
| Mono Chloro Acetic Acid | *** |
| Missouri Community Action Agency | *** |
| Maryland Coordination and Analysis | *** |
| Mechanical Contractors Association of Alberta | *** |
| Maine Community Action Association | *** |
| Monterey Celtic Arts Academy | *** |
| Midwest Conference on Asian Affairs | *** |
| Midland Counties Athletic Association | *** |
| Make College Affordable Act | *** |
| Monroe County Airport Authority | *** |
| Michigan Ceramic Art Association | *** |
| Member of the Chiropractors Association of Australia | *** |
| Montgomery County Airport Association | ** |
| magnetic coil acoustic artifact | ** |
| magnetic coil acoustic artifacts | ** |
| maximum credible accident analysis | ** |
| Mountain Catchment Areas Act | ** |
| Montana County Attorney Association | ** |
| Masonry Contractors Association of America | ** |
| Masonry Contractors Association of Alberta | ** |
| Milford Community Athletic Association | ** |
| Midland Counties Athletics Association | ** |
| Maryland Correctional Administrators Association | ** |
| Movement and Control Association | ** |
| Missoula County Airport Authority | ** |
| Messenger Courier Association of Americas | ** |
| MONGOLIA Civil Aviation Authority | ** |
| Meriden Community Action Agency | ** |
| Mason Contractors Association of Akron | ** |
| Mosquito Control Association of Australia | ** |
| Mechanical Contractors Assoc of America | ** |
| Middlebury College Alumni Association | ** |
| McLean County Apartment Association | ** |
| Mill Creek Athletic Association | ** |
| Minnesota County Attorney Association | ** |
| Marysville Charter Academy for the Arts | ** |
| Mason Contractor Association of America | ** |
| Mason Contractors Association of American | ** |
| Metropolitan Christian Academy of the Arts | ** |
| Mid Central Activities Association | ** |
| Minnesota Christian Athletic Association | ** |
| Mechanical Contractors Association of American | ** |
| Minnesota Community Action Association | ** |
| Montgomery County Airpark Association | ** |
| Mechanical Contractor Association of America | ** |
| Mainframe Computer Account Administration | ** |
| Mongolian Civil Aviation Authority | ** |
| Motor City Auto Auction | ** |
| Maine Chiropractic Assistant Association | * |
| Measures of Criminal Attitudes and Associates | * |
| Mid Clyde Angling Association | * |
| Midlands Counties Athletic Association | * |
| Montana County Attorneys Association | * |
| MultiCultural and Affirmative Action | * |
| Mechanical Contractors Assocation of America | * |
| Mohave County Airport Authority | * |
| Middlesex County Assessors Association | * |
| Montgomery County Auto Auction | * |
| Municipal Court Administration Association | * |
| Mandel Center Alumni Association | * |
| Mechanical Contracting Association of America | * |
| Mechanical Contractors of America Association | * |
| Metro Christian Athletic Association | * |
| Midwest Coal Ash Association | * |
| Marshalls Community Action Agency | * |
| Mason Contractors of America | * |
| Midwest Collegiate Athletic Association | * |
| Minority Career Advancement Awards | * |
| MRPG and Career Advancement Awards | * |
| Micro Channel Adapter Architecture | * |
| Mohawk College of Applied Arts | * |