| Group | Keyword | Word |
| Medicine, Chemistry
| Disease, Symptom |
Concussion |
| Name of Place in UK
| Road |
Conduit Street |
| Medicine, Chemistry
| Anatomy, Body Part |
Condyle |
| Enterprise, Trade
| Selling |
Confectioner's man |
| People, Culture, History
| War |
Confederate |
| Enterprise, Trade
| Circus, Conjurer |
Conjurer |
| Miscellaneous
| Incident Including Untold Case |
Conk-Singleton |
| Transportation
| Ship, Vessel |
Conqueror |
| Status, Profession
| King, President, Dynasty |
Conquistador |
| Organisation, Establishment
| Government, Parliament |
Conservative |
| Status, Profession
| Politician |
Conservative politician |
| Status, Profession
| Policeman |
Constable |
| Organisation, Establishment
| Police |
Constabulary |
| Organisation, Establishment
| Police |
Constabulary at Skibbareen |
| Status, Profession
| Craftsman, Engineer |
Constructor |
| Status, Profession
| Doctor |
Consultant |
| Status, Profession
| Private Detective |
Consulting Detective |
| Medicine, Chemistry
| Disease, Symptom |
Consumption |
| Medicine, Chemistry
| Disease, Symptom |
Contagious by touch |
| Name of Place in the World
| Unclassified Place |
Continent |
| Transportation
| Train, Carriage |
Continental express |
| Print, Publication
| Encyclopaedia, Almanac |
Continental Gazzetteer |
| Enterprise, Trade
| Real Estate, Builder |
Contractor |
| Status, Profession
| Artist |
Contralto |
| Medicine, Chemistry
| Disease, Symptom |
Convalescent |
| Organisation, Establishment
| Association |
Convict gang |
| Transportation
| Ship, Vessel |
Convict ship |
| Organisation, Establishment
| Military |
Convict-guard |
| Status, Profession
| Policeman |
Cook |
| Household
| Domestic Servant |
Cook |
| Miscellaneous
| Incident Including Untold Case |
Cook, John |
| Enterprise, Trade
| Service Industry |
Cook's local office |
| Status, Profession
| Public/Commercial Servant |
Coolie |
| Medicine, Chemistry
| Disease, Symptom |
Coolie disease in Smatra |
| Medicine, Chemistry
| Medicine, Chemical |
Cooling medicine |
| Organisation, Establishment
| Railway Station |
Coombe Tracey |
| Name of Place in UK
| Town |
Coombe Tracey |
| Name of Place in the World
| Other Country and District |
Copenhagen |
| Status, Profession
| Scholar, Writer, Scientist |
Copernican Theory |
| Status, Profession
| Policeman |
Copper |
| Hand Prop
| Coin, Banknote |
Copper |
| Animal, Plant
| Plant |
Copper beech |
| Household
| Dwelling, Private Premise |
Copper Beeches |
| Miscellaneous
| Canon |
Copper Beeches |
| People, Culture, History
| Religion |
Copt |
| Miscellaneous
| Incident Including Untold Case |
Copt |
| Organisation, Establishment
| Church, Temple |
Coptic monastery |
| Alias
| False Name |
Coram, Professor |
| Status, Profession
| Craftsman, Engineer |
Cork-cutter |
| Animal, Plant
| Bird |
Cormorant |
| Miscellaneous
| Incident Including Untold Case |
Cormorant |
| Enterprise, Trade
| Selling |
Corn-chandler |
| Alias
| False Name |
Cornelius |
| People, Culture, History
| Culture, Language |
Cornish language |
| Name of Place in UK
| Other Place |
Cornish peninsula |
| Name of Place in UK
| County |
Cornwall |
| Status, Profession
| Doctor |
Coroner |
| Organisation, Establishment
| Court |
Coroner's inquiry |
| Organisation, Establishment
| Court |
Coroner's jury |
| Miscellaneous
| Picture, Music |
Corot |
| Status, Profession
| Artist |
Corot, Jean B. C. |
| Status, Profession
| Soldier |
Corporal |
| Name of Place in UK
| Road |
Corporation Street |
| Name of Place in the World
| Other Country and District |
Costa Rica |
| Enterprise, Trade
| Selling |
Coster |
| Animal, Plant
| Plant |
Cotton grass |
| Medicine, Chemistry
| Treatment, Inspection |
Cotton wadding |
| Animal, Plant
| Plant |
Cottonwood |
| Status, Profession
| Judicial Circle |
Counsel |
| Status, Profession
| Judicial Circle |
Counsellor |
| Status, Profession
| Nobleman |
Count |
| Status, Profession
| Nobleman |
Countess |
| People, Culture, History
| Religion |
Country of the Saints |
| Status, Profession
| Doctor |
Country surgeon |
| Status, Profession
| Farmer |
Countryman |
| Status, Profession
| Policeman |
County Constable |
| Organisation, Establishment
| Police |
County Constabulary |
| Status, Profession
| Doctor |
County coroner |
| Organisation, Establishment
| Association |
County Delegate |
| Organisation, Establishment
| Prison |
County gaol |
| Organisation, Establishment
| Police |
County police |
| Organisation, Establishment
| Palace, Castle |
Court |
| Organisation, Establishment
| Court |
Court |
| Organisation, Establishment
| Court |
Court of appeal |
| Organisation, Establishment
| Court |
Court of law |
| Organisation, Establishment
| Court |
Court of Queen's Bench |
| Organisation, Establishment
| Court |
Court-martial |
| Enterprise, Trade
| Selling |
Covent Garden Market |
| Organisation, Establishment
| Theatre |
Covent Garden Theatre |
| Name of Place in UK
| City |
Coventry |
| Status, Profession
| Policeman |
Coventry, Sergeant |
| Animal, Plant
| Mammal |
Cow |
| Status, Profession
| Religious Circle |
Cowper |
| Enterprise, Trade
| Stockbroker |
Coxon |
| Enterprise, Trade
| Stockbroker |
Coxon & Woodhouse |
| Animal, Plant
| Mammal |
Coyote |