| Compact Intracloud Discharge | Academic & Science |
| Career Information Day | Academic & Science |
| Center for International Development | Academic & Science |
| Chemical Injection for Downhole | Academic & Science |
| Cedar Rapids Ia | Airport Code |
| Chinese Imperial Dog | Animal Kingdom |
| Card ID | Business |
| Chieftain International, Inc. | Business |
| Customization, Installation, and Distribution | Business |
| Construction Industries Division | Business |
| Careers Information Database | Business |
| Claims and Investment Disputes | Business |
| Cleveland Instrument Division, VXI Technology, Incorporated | Business |
| Contract of Indefinite Duration | Business Management |
| Certified Interior Decorators | Certifications |
| Collision-induced Dissociation | Chemistry |
| Cinematic Intuitive Dynamix | Community |
| City Improvement District | Community |
| Central Institute for the Deaf | Community |
| Certified Internet Diver | Community |
| Caller Identification | Computer and Networking |
| Compare and Ignore Data | Computer Assembly Language |
| Common Intelligent Display | Computer Hardware |
| Computer Integrated Design | Computer Hardware |
| Configuration, Installation, and Distribution | Computing |
| Cooperative Intrusion Detection | Computing |
| See Identification Card | Computing |
| Customer Induced Damage | Computing |
| Card Identification Digit | Computing |
| Consider It Done | Computing |
| Collective Intelligence Drivers | Computing |
| Configuration Installation Distribution | Computing |
| Class Id | Computing |
| Customer Id | Computing |
| Connection Identifier | Computing |
| Cisco Internetwork Design | Computing |
| Codec Id | Computing |
| Client Id | Computing |
| Connected Information Device | Computing |
| Carrier Id | Computing |
| Communication Identifier | Computing |
| Component Identifier | Computing |
| Collection Id | Computing |
| Context Id | Computing |
| Circuit Id | Computing |
| Card Identification Data | Computing |
| Channel Id | Computing |
| Causality Identifier | Computing |
| Component Implementation Descriptor | Computing |
| C Plus Plus Interactive Dashboard | Computing |
| Central Internet Database | Database Management |
| Central Intelligent Data | Database Management |
| Cytomegalic Inclusion Disease | Disease |
| Clinical Infectious Diseases | Disease |
| Combined Immunodeficiency Disease | Disease |
| Charge-injection Device | Electronics |
| Complete Intelligence Deficiency | General |
| Christians In Disguise | General |
| Certified Irrigation Designer | General |
| Confederation of Institutetute Directors | General |
| Continuity Impact Discount | General |
| Coverings Installation and Design | General |
| Center for Integrated Diagnostics | General |
| Credit Income And Down | General |
| Communication in the Disciplines | General |
| Communication Interactive Disorder | General |
| Civil Investigative Demand | General |
| Center for Independent Documentary | General |
| Coverings Installation Design | General |
| Crying In Disgrace | General |
| Carpal Instability Distance | General |
| Creativity and Innovation District | General |
| Cops In Dawakey | General |
| Clin Infect Dis | General |
| Channel Islands Design | General |
| Central Information Display | General |
| Cylinder Identification | General |
| Color Information Display | General |
| Camion d'Interventions Diverses | General |
| Central Illinois Dragway | General |
| Camshaft Identification | General |
| Controller Interface Device | General |
| Citroen Id | General |
| Commander's Intelligent Display | Governmental |
| Central Investigation Department | Governmental |
| Critical Incident Debriefing | Governmental |
| Computer Integrated Depositions | Governmental |
| Criminal Intelligence Department | Governmental |
| Criminal Investigations Division | Governmental |
| Central Intelligence Department | Governmental |
| Criminal Investigative Division | Governmental |
| Crime Investigation Department | Governmental |
| Council of Industrial Design | Governmental |
| Criminal Investigations Department | Governmental |
| Crime Investigation | Governmental |
| Commercial Item Description | Governmental |
| Crime Investigating Department | Governmental |
| Center for Infectious Diseases | Governmental |
| Criminal Investigation Department | Indian Government |
| CHIRAIDONGRI | Indian Railway Station |
| Connecticut Insurance Department | Insurance |
| Chinatown International District | International |
| Certified Interconnect Designer | Jobs |
| Chemistry Instructor Director | Jobs |
| Cubic Inch Displacement | Measurement Unit |
| Communication Interaction Disorder | Medical |
| Card IDentification number | Medical |
| Cytomegalic Inclusion Diesease | Medical |
| Chemotherapy-Induced Diarrhea | Medical |
| Chick Infective Dose | Medical |
| Choice In Dying | Medical |
| Community Index Database | Medical |
| Acid | Messaging |
| Combat Identification | Military and Defence |
| Combat Intelligence Division | Military and Defence |
| Criminal Investigation Division | Military and Defence |
| Committee of Imperial Defence | Military and Defence |
| Counter Intelligence Division | Military and Defence |
| Customer Interface Device | Networking |
| Client Information Database | Networking |
| Cloud Infrastructure Design | Networking |
| Community Improvement District | Real Estate |
| Common Interest Development | Real Estate |
| Cedar Rapids/ Iowa City, Iowa USA | Regional |
| Criminal Investment Department | Regional |
| Computer Interface Device | Space Science |
| Craft Interface Device | Telecommunication |
| Cell Identification Number | Telecommunication |
| Call Instance Data | Telecommunication |
| Eastern Iowa Airport | Transport & Travel |
