| Course Code or Carbon Copy | Academic & Science |
| Clipper Chip | Academic & Science |
| Chamber Charge | Academic & Science |
| Community College | Academic & Science |
| Component Code | Academic & Science |
| Curing of Concrete | Academic & Science |
| Chloride Chamber | Academic & Science |
| Conversion Current | Academic & Science |
| Central Composite | Academic & Science |
| Computation Center | Academic & Science |
| Cumulus Cell | Academic & Science |
| Climate Change | Academic & Science |
| Constant Current | Academic & Science |
| Computer Center | Academic & Science |
| Column Chromotography | Academic & Science |
| Cresent Academy | Academic & Science |
| Club chair (interior Decoration) | Academic & Science |
| Contrction Crack | Academic & Science |
| Cash Commodity | Accounts and Finance |
| Card Cash | Accounts and Finance |
| Credit Card | Accounts and Finance |
| Cost Center | Accounts and Finance |
| Cash Credit | Banking |
| Chief Cashier | Banking |
| Chamber of Commerce | Banking |
| Certified Cheque | Banking |
| Code of Conduct | Banking |
| Common Criteria | Business |
| Carbon Copying | Business |
| Cheveux Corp | Business |
| Company Commander | Business |
| Clear Channel | Business |
| Circuit City | Business |
| Cartoon Character | Business |
| Cyber Cafe | Business |
| Close Corporation | Business |
| Crime Control | Business |
| Circuit City Stores, Inc. | Business |
| Commercial Certificate | Business |
| Crypto Currency | Business |
| Computer Concepts (Company) | Business |
| Chrysler Corporation | Business |
| Challenge Certificate | Business |
| Contact Center | Business |
| carbon copy [copy to] | Business |
| Converted Garage | Business |
| Copper Soldered Connection | Business |
| Club Cab | Business |
| Continental Coin | Business |
| Community Corrections | Community |
| Short for Cancel culture | Community |
| Cyber Chick | Community |
| Christian Coalition | Community |
| Century Club | Community |
| Cecil Cornelius | Community |
| Christopher Columbus | Community |
| Classical and Contemporary | Community |
| Crazy Cat | Community |
| Community Center | Community |
| Christopher Crotty, Dermatologist | Community |
| Calvary Contender | Community |
| Carol City | Community |
| Closed Captioning | Community |
| Claudia Cardinale | Community |
| Close Captioned | Community |
| Child Care | Community |
| Closed Captioned | Community |
| Community Club | Community |
| Creative Commons | Community |
| County Community | Community |
| Country Club | Community |
| Community Council | Community |
| Christian Company | Community |
| Charles Cunningham, Naval Officer | Community |
| Call Control | Computer and Networking |
| Common Carrier | Computer and Networking |
| Communication Capability field | Computer and Networking |
| Conference Call | Computer and Networking |
| Continuity Check (Rec. I.610) | Computer and Networking |
| Control Channel | Computer and Networking |
| Condition Code | Computer Assembly Language |
| Clear The Command | Computer Assembly Language |
| Carry Clear | Computer Assembly Language |
| Cache Coherent | Computer Hardware |
| Color Compensating | Computer Hardware |
| Compact Computer | Computer Hardware |
| Common Core | Computing |
| Cocos | Computing |
| Cyber Copy | Computing |
| Command Code | Computing |
| Clan Castle | Computing |
| Castle Clash/Cyber | Computing |
| Command and Conquer | Computing |
| Main Control Cabinet Control Cabinet | Computing |
| Computer Controlled | Computing |
| Cocos (Keeling) Islands | Country Names |
| CryptoCart | Cryptocurrency |
| Cane Creek | Earth Science |
| College Confidential | Educational Institute |
| Colorado College | Educational Institute |
| Chip Carrier | Electronics |
| Coiled Coil | Electronics |
| Common Cathode | Electronics |
| Closed Circuit | Electronics |
| Carbon Copy | Email |
| Cubic Capacity | Engine Capacity |
| C++ Language Source Code File (gcc) | File Type |
| Cc Language Source Code File | File Type |
| The Coordinating Conjunction | General |
| Case Cc | General |
| Coup Cabriolet | General |
| Coupe Cabriolet | General |
| Critics Choice | General |
| Conscious And Caring | General |
| Centre For Competency | General |
| Congress Critter | General |
| City Central | General |
| Charlie Chow | General |
| Creative Creature | General |
| Confusion And Cha | General |
| Confusion And Chaos | General |
| C Cup | General |
| Cubic Centimetre | General |
| Chubby Cheeks | General |
| Crystal Castles | General |
| Control and Command | General |
| Canadian Club | General |
| Calorie Counter | General |
| Christmas Cat | General |
| Competition Coupe | General |
| Compare Contrast | General |
| Character And Charm | General |
| Coursing Champion | General |
| Copy Cat | General |
| Connie Cockatiel | General |
| Carson City, Nevada (mint mark on United States coins) | General |
| Custom Combo | General |
| Color Classic | General |
| BattleCruiser (1920) | General |
| Credentials Committee | General |
| Command Cruiser (1960) | General |
| Cookies and Cream | General |
| Cubic Centimeters | General |
| Cubic Centimetres | General |
| Actuator Change | General |
| Chocolate Chip | General |
| Certified Coach | General |
| Corrosion Control | General |
| Custom Critters | General |
| Carsten Charles | General |
| Cubic Centiliter | General |
| Core Clear | General |
| Cold Cute | General |
| Coloring Contest | General |
| Customer Care | General |
| Closed Captions | General |
| Creative Cloud | General |
| Colour Correcting | General |
| Center To Center | General |
| Counting Calories | General |
| Classy Chap | General |
| Candy Country | General |
| Communication Component | General |
| Competent Communicator | General |
| Chipmunk Cheeks | General |
| Call Center | General |
| Calendar Cat | General |
| Correcting Classifiers | General |
| Current Continuation | General |
| Cloned Cat | General |
| Cowardly Commie | General |
| Camaro Coupe | General |
| Coxs Cove | General |
| Corps Consulaire | General |
| Countable Closure | General |
| Change Cartridge | General |
| Critical Confusion | General |
| Crap Charity | General |
| Cam Chain | General |
| Clear Communication | General |
| Custom Content | General |
| Continuous Controller | General |
| Cranky Cat | General |
| Cubic Centimentre | General |
| Crazy Child | General |
| Control Change | General |
| Canadian Club whiskey | General |
| Cruz Contreras | General |
| Construction Chemicals | General |
| Control Code | General |
| Claudio Castiglioni | General |
| Call Cc | General |
| Comfort Coupé | General |
| Charm City | General |
| Century Certificate | General |
| Cute Carmen | General |
| Classic Color | General |
| Crowd Control | Governmental |
| Community Charge | Governmental |
| Centristas de Cataluña | Governmental |
| Close Call | Governmental |
| Comunistas de Cataluña | Governmental |
| Computer Cars | Governmental |
| Corpo Consolare | Governmental |
| Copy Culprit | Governmental |
| Crack Cocaine | Governmental |
| Carrying Capacity | Governmental |
| Chief Constable | Governmental |
| Complimentary Copy | Governmental |
| Contract Carriers | Governmental |
| College Council | Governmental |
| Carpenter And Calker | Governmental |
| Civilian Colleges | Governmental |
| Central Council | Governmental |
| Comunidad Ciudadana | Governmental |
| Clinical Center | Governmental |
| Commissioned Corps | Governmental |
| Cruise Control | Governmental |
| Captor | Governmental |
| Clinical Center (NIH) | Governmental |
| Cyber Crime | Governmental |
| Coal Controller | Indian Ministry of Coal |
| CHAURI CHAURA | Indian Railway Station |
| AC Chair Car | Indian Railways |
| C Compiler | Information Technology |
| Cámara de Comercio | International |
| Centre Catalá | International |
| Código Civil | International |
| Comisiones Campesinos | International |
| Convergencia Canaria | International |
| Cuerpo Consular | International |
| Coalición Canaria | International |
| Coordinadora Canaria | International |
| Corte de Constitucionalidad | International |
| Asamblea Canaria-Coordinadora Canaria | International |
| Caballero Cadete | International |
| Cali-Cool | Internet |
| Cookie Clicker | Internet |
| Circus Chimp | Jobs |
| Chief of Communications | Jobs |
| Complex Conjugate | Maths |
| Conjugated Complex | Maths |
| Correlation Coefficient | Maths |
| Convex Combination | Maths |
| Convexo-concave | Maths |
| Cubic Centimeter | Measurement |
| Curvilinear Co-ordinates | Measurement Unit |
| Choledochal Cyst | Medical |
| choriocarcinoma | Medical |
| Chronic Constipation | Medical |
| Cingulate Cortex | Medical |
| City Council | Medical |
| Closed Caption | Medical |
| Clean Catch | Medical |
| Clinical Course | Medical |
| Carboplatin, Cyclophosphamide | Medical |
| chondrocalcinosis | Medical |
| Classical Conditioning | Medical |
| Cell Culture | Medical |
| Chronic Cough | Medical |
| Clinical Criteria | Medical |
| Clomiphen Citrate | Medical |
| Congenital Cataract | Medical |
| Closed Comedon | Medical |
| Cochrane Collaboration | Medical |
| Collagenous Colitis | Medical |
| Colonic Cancer | Medical |
| Colony Count | Medical |
| Column Chromatography | Medical |
| Columnar Cells | Medical |
| Common Carotid | Medical |
| Common Cold | Medical |
| Community Care | Medical |
| Complicating Condition | Medical |
| Condensed Chromatin | Medical |
| Congestive Cardiomyopathy | Medical |
| Consumption Coagulopathy | Medical |
| Cancer Center | Medical |
| Conventional Chemotherapy | Medical |
| Cord Compression | Medical |
| Corpus Callosum | Medical |
| Costal Cartilage | Medical |
| Clinical Cure | Medical |
| Congenital Chylothorax | Medical |
| Coronary Care | Medical |
| Calico Cat | Medical |
| Coefficient of Correlation | Medical |
| Conventional Care | Medical |
| Colorectal Cancer | Medical |
| Cleveland Clinic, in Cleveland, Ohio. | Medical |
| Caucasian Child | Medical |
| Canadian Council | Medical |
| Current Complaint | Medical |
| Chief Complaint | Medical |
| Complex Conjugation | Medical |
| Cum Cibo (with food) | Medical |
| Carson City | Medical |
| Calcaneo-Cuboidal | Medical |
| Co-ordinated Care | Medical |
| Coulter Counter | Medical |
| germinal center | Medical |
| County Council | Medical |
| Courtesy Call | Medical |
| Cranio-Caudal | Medical |
| Creatinine Clearance | Medical |
| Critical Care | Medical |
| Cryptogenic Cirrhosis | Medical |
| Calcium Citrate | Medical |
| Current Contents | Medical |
| cytochrome C | Medical |
| Cardiac Catheterisation | Medical |
| Cardiac Cycle | Medical |
| Carney complex | Medical |
| Cerebral Cortex | Medical |
| Cervical Cancer | Medical |
| Cervical Collar | Medical |
| Charity Commission | Medical |
| Chest Circumference | Medical |
| Chest Compression | Medical |
| Convalescent Corps | Medical |
| Chief Cells | Medical |
| Children’s Council | Medical |
| cholangiocarcinoma | Medical |
| Come Closer | Messaging |
| Cute Couple | Messaging |
| Cutie Cutie | Messaging |
| Component Command | Military and Defence |
| Confined To Camp (punishment) | Military and Defence |
| Critical Capability | Military and Defence |
| Concentration Camp | Military and Defence |
| Clearing Course | Military and Defence |
| Capitán De Corbeta | Military and Defence |
| Carbon Composites | Military and Defence |
| Central Control | Military and Defence |
| Close Combat | Military and Defence |
| Communication Center | Military and Defence |
| Compilation Control | Military and Defence |
| Criteria Check | Military and Defence |
| Command Center | Military and Defence |
| Cluster Controller | Networking |
| Check Cookies | Networking |
| Client Capability | Networking |
| Courtesy Copy | Networking |
| Conservation of Charge | Physics Related |
| Country Code | Regional |
| Currency Challenged | Regional |
| Chicago Central and Pacific Railroad Company | Regional |
| Corpus Christi, Texas | Regional |
| Control C | Regional |
| Chicago Central and Pacific Railroad | Regional |
| Calhoun County | Regional |
| Carbon-carbon | Space Science |
| Channel Controller | Space Science |
| Chief Counsel | Space Science |
| Communications Control | Space Science |
| Crew Compartment | Space Science |
| Crew Certified | Space Science |
| Contaminant Control | Space Science |
| Cricket Club | Sports |
| Conference Champion | Sports |
| Clutch Catches | Sports |
| Crew Change | Sports |
| Car Craft | Sports |
