sort by Rank | Alpha
| Possible Meanings | Rank |
| College of Computer Information Sciences | **** |
| Commerce Industry and Services | **** |
| Calgary Catholic Immigration Society | **** |
| Communications in Computer and Information Science | *** |
| Commerce and Industry of Slovenia | *** |
| Critical Care Information Systems | *** |
| Celebrate Christmas in Singapore | *** |
| Chamber of Commerce and Industry of Slovenia | *** |
| Command and Control Information System | *** |
| Child Care Information Systems | *** |
| Colorado Center for Information Storage | *** |
| carcinomes canalaires in situ | *** |
| Cross Cultural Interpreting Services | *** |
| Connexions Customer Information System | *** |
| Comprehensive Case Information System | *** |
| Colorado Crime Information System | *** |
| Canadian Climate Impacts and Scenarios | *** |
| Chicago Communities in Schools | *** |
| Command Control and Information Systems | *** |
| Command and Control Information Systems | *** |
| C C Industrial Sales | *** |
| Common Channel Interoffice Signalling | *** |
| College of Computer and Information Science | *** |
| Canadian Climate Impacts Scenarios | *** |
| Center for Comparative Integration Studies | *** |
| Craigmillar Community Information Service | *** |
| Computerized Clinical Information System | *** |
| China Credit Information Service | *** |
| Centre for Computing and Information Systems | *** |
| Central Capital Investment Subsidy | *** |
| Council for International Students | ** |
| Clinical Computerized Information System | ** |
| Colorado Consortium for Independent Study | ** |
| Cooperative Crash Injury Study | ** |
| Centro Carabinieri Investigazioni Scientifiche | ** |
| Crime Criminal Information System | ** |
| College Consortium of International Studies | ** |
| Communication and Information Studies | ** |
| Chester County Internet Services | ** |
| Colleges of Computer and Information Society | ** |
| platelet-corrected count increments | ** |
| Corpus Cultus Iovis Sabazii | ** |
| Crime and Criminal Information System | ** |
| Customer Care Internet Service | ** |
| Churches Commission for International Students | ** |
| correll co investment services | ** |
| Center for Creativity and Innovation Studies | ** |
| Clinical Immunology at Stanford | ** |
| Command Control Information System | ** |
| Colour Corrected Infinity System | ** |
| Cali Calmecac Immersion School | ** |
| Center for Computing and Information Systems | ** |
| Council of International Schools | ** |
| Clinical Competitive Intelligence System | ** |
| Chamber of Commerce of Industry and Services | ** |
| Colorado Confidential Intermediary Services | ** |
| Centre for Communication Information Studies | ** |
| Community Corrections Information System | ** |
| Campaign for Cooperation in Space | ** |
| Coaxial Cable Information System | ** |
| Commerce and Industry of Suriname | ** |
| Community Committee for International Students | ** |
| Central California Internet Services | ** |
| Communication and Information System | ** |
| CURRICULAR CAREER INFORMATION SERVICE | ** |
| Color Corrected Infinity System | * |
| Comprehensive Crop Insurance Scheme | * |
| Common Channel Interface Signaling | * |
| Cyber Crime Investigation Squad | * |
| Canadian Climate Impact Scenarios | * |
| Center for Construciton Industry Studies | * |
| Construction Contracts Information System | * |
| Consultant Contract Information System | * |
| Creative Children International School | * |
| Cancer Center Information Systems | * |
| Command C2 Information System | * |
| Community Council for International Students | * |
| Connexions Customer Information Service | * |
| Control Communications and Intelligence Systems | * |
| Common Control Interoffice Signaling | * |
| Comprehensive Clinical Information System | * |
| Chemicals in Commerce Information System | * |
| Civil Commercial Imagery Systems | * |
| Command And Control Information Centre | * |
| Committee for Coordination of Information Systems | * |
| Confidential Chemicals Identification System | * |