sort by Rank | Alpha
| Possible Meanings | Rank |
|---|
| Center for International Research | **** |
| Community Information and Referral Service | **** |
| Center for International and Regional Studies | **** |
| Chinmaya International Residential School | *** |
| Chronic Illness Resources Survey | *** |
| California Institute for Rural Studies | *** |
| Critical Incident Reporting System | *** |
| Computerized Information Retrieval System | *** |
| Chemical Incident Response Service | ** |
| Convergence Insufficiency and Reading Study | ** |
| Community Information Referral Society | ** |
| Center for Information and Research Services | ** |
| Criminal Investigative Reporting System | ** |
| Critical Incidence Reporting System | ** |
| Certified Insurance Rehabilitation Specialist | ** |
| Consortium Italicum Ratione Soluta | ** |
| Cumulative Illness Rating Scale | ** |
| Cross Interleaved Reed Solomon | ** |
| Centre for Interactive Research on Sustainability | ** |
| Christian Institute for Religious Studies | ** |
| Certified Information and Referral Specialist | ** |
| Community Information and Referral Society | ** |
| Critical Incident Reporting Service | ** |
| Cancer Information and Referral Service | ** |
| Computerized Imaging Reference Systems | ** |
| Composite Infra Red Spectrometer | * |
| community inshore rescue service | * |
| Campus Information Retrieval System | * |
| Cryogenic Information Retrieval System | * |
| Centers Information and Referral Service | * |
| Chemical Inventory Reporting System | * |
| Cluster Infall Regions in the Sloan | * |
| Command Integrated Resource Submission | * |
| Command Integrated Resource Submit | * |
| Containment Iodine Removal System | * |
| Customer Installation Requirement Specification | * |