sort by Rank | Alpha
| Possible Meanings | Rank |
|---|
| A Radio Reading Service | **** |
| Academy of Radiology Research | **** |
| At the American Roentgen Ray Society | *** |
| Aerospace Rescue & Recovery Service | *** |
| Animal Rights Resource Site | *** |
| Association of Road Running Statisticians | *** |
| Archive and Retrieval Subsystem | *** |
| Analyst Research at Reuters | *** |
| American Roetgen Ray Society | *** |
| Adverse Reactions Reporting System | *** |
| Aerospace Rescue and Recovery Service | *** |
| Association of Road Racing Statisticians | *** |
| Air Rescue Recovery Service | ** |
| Auger Resonant Raman Spectroscopy | ** |
| Adelaide River Railway Station | ** |
| Administrative Regulation Review Subcommittee | ** |
| Association of Road Race Statisticians | ** |
| Air Rescue and Recovery Squadron | ** |
| Archived Records Retrieval System | ** |
| Amer Roentgen Ray Society | ** |
| According to Revere Sector | ** |
| Academic Research Research Support | ** |
| Air Rescue and Recovery Service | ** |
| ALOS Rapid Response System | ** |
| Accenture Rapid Revenue Solution | ** |
| Arkansas Radio Reading Services | ** |
| Automated Railway Reservation System | ** |
| Aerospace Recovery and Rescue Squadron | ** |
| AMKUS Rope Rescue System | ** |
| Automated Repatriation Reporting System | * |
| Administrative Records Research Staff | * |
| Aerospace Recovery and Rescue Service | * |
| Agumbe Rainforest Research Station | * |
| Aircraft Refueling & Rearming Study | * |
| Alabama Radio Reading Service | * |
| Alien Right Respect Sect | * |
| American Roengten Ray Society | * |
| Analysis Records And Reports Section | * |
| Analysis Records and Reporting Section | * |
| Army Readiness Reporting System | * |
| Animal Rights Related Sites | * |
| Avid Remote Response System | * |