sort by Rank | Alpha
| Possible Meanings | Rank |
| Research and Consultancy Centre | **** |
| Rostral Anterior Cingulate Cortex | **** |
| Rape and Abuse Crisis Center | **** |
| Richmond Area Chamber of Commerce | **** |
| Rochester Area Chamber of Commerce | **** |
| Risk Adjusted Cost of Capital | **** |
| Road the City Council | **** |
| Regional Arts Culture Council | **** |
| Refrigeration Air Conditioning Contractors | *** |
| Rec Arts Comics Creative | *** |
| Regional Arts and Culture Council | *** |
| Recreation and Culture Committee | *** |
| Redwood Area Community Center | *** |
| Rules and Competition Committee | *** |
| Reading Area Community College (Reading, PA) | *** |
| Rolla Area Chamber of Commerce | *** |
| Realtors Association of Citrus County | *** |
| Regional Area Consultative Committee | *** |
| Reynoldsburg Area Chamber of Commerce | *** |
| Ridgway Chamber of Commerce | *** |
| Randolph Area Chamber of Commerce | *** |
| Russian Association of Crisis Centres | *** |
| Richfield Area Chamber of Commerce | *** |
| RAG American Coal Company | *** |
| Richland Area Community Center | *** |
| Richmond Animal Care Control | *** |
| Raytheon Aircraft Credit Corporation | *** |
| Reading Area Comm College | *** |
| Remote Amplifier Control Center | ** |
| Receptor-activated Ca2+ channels | ** |
| Receptor Activated Cation Channels | ** |
| Remote Activated Custody Control | ** |
| Russian Americans Chamber of Commerce | ** |
| Residential Alternative Community Care | ** |
| Regional Adult Cardiothoracic Centre | ** |
| reseau action culturelle cinema | ** |
| Regional Ambulance Control Centre | ** |
| Risk Audit Compliance Committee | ** |
| Reducing Acute Care Costs | ** |
| Regional Anti Corruption Convention | ** |
| Regional Agency Coordinating Committee | ** |
| Royal Automobile Club of Catalunya | ** |
| Ridgway Area Chamber of Commerce | ** |
| Rockford Area Chamber of Commerce | ** |
| Regional Arts and Cultural Council | ** |
| Rutgers Air Compliance Center | ** |
| Regional Agricultural Credit Corporation | ** |
| Regional Arts Commission Culture | ** |
| Raufoss Automotive Components Canada | ** |
| Research on Advanced Composites in Construction | ** |
| Ramstein Area Cycling Club | ** |
| Rich Aroma Coffee Company | ** |
| Regional Advisory Committee on Cancer | ** |
| Redhill Aerodrome Consultative Committee | ** |
| Regional AIDS Coordinating Committees | ** |
| Regional Algal Coordinating Committees | ** |
| Republican Assembly Campaign Committee | ** |
| Reference Amount Commonly Consumed | ** |
| Regional AIDS Control Coordinator | ** |
| Rhadiola Astragalus Codonopsis Compound | ** |
| Racers Against Childhood Cancer | ** |
| Republic Area Chamber of Commerce | ** |
| Richmond Arts and Cultural Commission | ** |
| Riverina Area Consultative Committee | ** |
| ROEBEL Assembled Coated Conductors | ** |
| Rantoul Area Chamber of Commerce | ** |
| Riley Asthma Care Center | ** |
| Russian Aircraft Construction Corporation | ** |
| Rochester Airport Consultative Committee | ** |
| Residential A C Cycling | ** |
| Restaurant Association of Chester and Cheshire | ** |
| Ray Amiri Computer Consultants | ** |
| relocation assistance coordinating committee | ** |
| Risk Assessment of Colorectal Cancer | ** |
| rogue area computer club | ** |
| Regional Administrative Committee Chairmen | * |
| Regional Advisory Committee Coordinator | * |
| Reptile and Amphibian Conservation Corps | * |
| Research Assessment and Curriculum Center | * |
| Rural Area Concerned Citizens | * |
| Rat Adrenal Chromaffin Cells | * |
| Rear Area Component Commander | * |
| Riverside Area Community Club | * |
| ROEBEL Assembled Coated Conductor | * |
| Roxboro Area Chamber of Commerce | * |
| Royal Automobile Club of Catalonia | * |
| Russian American Cultural Club | * |
| Reference Amounts Customarily Consumed | * |
| Refugee Advisory Council on Crime | * |
| Remote Automatic Cross Connect | * |
| Rengkai Athletic and Cultural Club | * |
| Rotor Active Clearance Control | * |
| Russian Association of Crisis Centers | * |
| Red Arrow Coal Company | * |
| Royal Armored Corps Center (UK) | * |