sort by Rank | Alpha
| Possible Meanings | Rank |
| Animal and Range Sciences | **** |
| And Review Services Committee | *** |
| Auto RTS Signal Control | *** |
| A Really Simple Chat | *** |
| Archives of the Sisters of Charity | *** |
| Association of Recorded Sound Collections | *** |
| Appalachian Regional Studies Center | *** |
| Academic Regulations Sub Committee | *** |
| AIDS related sclerosing cholangitis | ** |
| AIDS-related sclerosing cholangitis | ** |
| aminoacyl-tRNA synthetase complex | ** |
| Amateur Radio Service Centre | ** |
| Arctic Region Supercomputer Center | ** |
| Arctic Region Super Computing | ** |
| Applied Regional Science Conference | ** |
| Artic Region Supercomputing Center | ** |
| Applied Research Scientific Committee | ** |
| Arts and Sciences Courses | ** |
| Aircraft Repair and Service Center | ** |
| Association of Recorded Sound Collectors | ** |
| Accreditation Review Steering Committee | ** |
| Archive Research and Study Center | ** |
| Applied Regional Science Council | ** |
| Australian Remote Sensing Conference | * |
| African Remote Sensing Council | * |
| Accounts Receivable Service Corporation | * |
| Alpaca Registry Screening Committee | * |
| AEC Referenced Standards Collection | * |
| Assn for Recorded Sound Collections | * |
| Alaska Region Supercomputing Center | * |
| Aviation Repair and Supply Center | * |
| Association pour la Recherche Sur le Cancer | * |
| Amateur Radio Steve Cloutier | * |
| Applied Reasoning Systems Corporation | * |
| Applied Resource Science Center | * |
| Australian Remote Sensing Centre | * |