sort by Rank | Alpha
| Possible Meanings | Rank |
| Complex Instruction Set Computing | **** |
| Complex Instruction Set Computers | **** |
| Clean Intermittent Self Catheterization | *** |
| Construction Industry Standing Conference | *** |
| Complete Instruction Set Computer | *** |
| Cayman Islands Sailing Club | *** |
| Computer and Information Science | *** |
| Curriculum and Instruction Steering Committee | *** |
| Commonwealth International Sport Conference | *** |
| Community Information Systems Centre | *** |
| Centre for Innovation and Structural Change | *** |
| Centre for Innovation and Structural | *** |
| Conference on Information Security and Cryptology | *** |
| Creative Industries Skills Council | *** |
| Complex Instruction Set Chip | *** |
| Caribbean Islands Swimming Championships | *** |
| Complex Instruction Set Code | *** |
| Center for International Security | *** |
| Culinary Institute of Smoke Cooking | *** |
| Challenges in Scientific Computing | *** |
| chiba investment support center | *** |
| Campus Information Security Committee | *** |
| Criminal Intelligence Service of Canada | *** |
| Card Information Structure CIS | ** |
| Clean intermittent self catheterisation | ** |
| clean intermittent self-catheterisation | ** |
| clean, intermittent self-catheterization | ** |
| clean, intermittent, self-catheterization | ** |
| Coimbra Identified Skeletal Collection | ** |
| Coalition for Innovation in Scholarly Communication | ** |
| CNet Internet Service Center | ** |
| Client Information Support Center | ** |
| Criminal Intelligence Services of Canada | ** |
| Caribbean Island Swimming Championships | ** |
| Criminal Intelligence Services Canada | ** |
| Con A induced suppressive cells | ** |
| Center for International Security and Cooperation | ** |
| Call Independent Signalling Connections | ** |
| Computer and Information Sciences | ** |
| Customs Information and Support Centre | ** |
| Capital Iron and Steel Company | ** |
| Construction Industry Skills Centre | ** |
| Chinese Information Service Center | ** |
| Continuous Inventory of Stand Conditions | ** |
| Contractors Insurance Safety Council | ** |
| Christchurch Indian Sports Club | ** |
| Computer Information Systems Core | ** |
| Canadian Interconnection Steering Committee | ** |
| Combat Identification Systems Conference | ** |
| CRTC Industry Steering Committee | ** |
| Catholic Independent Schools Conference | ** |
| Colorado Investor Services Corporation | ** |
| Critical Incident Simulation Centre | ** |
| Construction Industry Standards Committee | ** |
| Continental Info Sys Corp | ** |
| Creative Industry Skills Council | ** |
| Calcutta Industrial Supply Corporation | ** |
| Center for Information Security and Cryptography | ** |
| Complex Instruction Set CPU | ** |
| Chinese Information and Service Center | * |
| Coalition for Innovation in Scholarly | * |
| Computer Information Science CISA | * |
| Conference on Information Security and Cryptography | * |
| Chief of Integrated Service Command | * |
| Ciutadania I Societat Civil | * |
| Computer Info Science Core | * |
| Chico Information Systems Committee | * |
| Computational and Information Sciences | * |
| Center for Intelligent Spatial Computing | * |
| Complex Instruction Set Coding | * |
| Continental Information Systems Corporation | * |
| Creative Industries Strategic Consortium | * |
| Cross Interleave Solomon Code | * |
| Cancer Information and Support Centre | * |
| Centro Interdipartimentale Scienze Cognitive | * |
| Citizen Information Service Center | * |
| Complex Instructions Set Computers | * |
| Contintl Info Sys Corp | * |
| Contl Information Sys CDD | * |
| Chase Investment Services Corporation | * |
| Combat ID Systems Conference | * |
| CSOC Integration Support Contract | * |
| Chemical Information System Contracts | * |
| Cirello Iron and Steel Company | * |
| Columbus Initiative Steering Committee | * |
| Counter Intelligence Security Countermeasures | * |