Letter: c
- carbolic acid, acid, alcohol, antiseptic, arsenic, disinfectant, iodine, poison, solvent
- carbon black, black, charcoal, colour, pigment, soot
- carbon copy, actual thing, carbon, copy, dead ringer, ditto, double, duplicate, equivalent, exact counterpart, facsimile, fiche, homograph, homonym, homophone, idem
- carbon dioxide, acetylene, ammonia, argon, asphyxiating gas, butane, carbon monoxide, chlorine, coal gas, coolant, ethane, ether, ethyl chloride, ethylene, fluorine, formaldehyde
- carbon monoxide, alcohol, ammonia, arsenic, carbon dioxide, chemical, gas, nitrogen, oxygen, poison
- carbon tetrachloride, acid, automatic sprinkler, carbon-dioxide foam, deck gun, deluge set, extinguisher, fire apparatus, fire engine, fire hose, fire hydrant, foam, foam extinguisher, hook-and-ladder, ladder pipe, pumper
- carbon, alcohol, ash, ashes, benzine, brand, briquette, burnable, butane, carbon copy, charcoal, cinder, clinker, coal, coke, combustible
- carbon-dioxide foam, acid, carbon tetrachloride, extinguisher, fire hydrant, foam, hook-and-ladder, hydrant, snorkel, soda, sprinkler, water, wet blanket
- carbonate, acidify, aerate, alkalise, atomize, borate, catalyse, chemical, chlorinate, distil, electrolyse, emit, etherize, evaporate, exhale, ferment
- carbonated, beaten, blistered, blistering, blistery, bubbly, ebullient, effervescent, fizzy, sparkling, vesicular, whipped
- carbonation, acidification, boiling, bubbling, catalysis, ebullience, effervescence, electrolysis, ferment, fermentation, fizz, fizzle, foaming, frothiness, frothing, hydrogenation
- carbonization, blazing, blistering, burning, combustion, cremation, distillation, incineration, oxidation, scorching, self-immolation, smelting
- carboy, bottle, canteen, cruet, flask, jar, jug
- carbuncle, abscess, bed sore, blister, boil, bubo, bump, bunion, canker, canker sore, chancre, chilblain, cold sore, corn, cyst, dilatation
- carburettor, accelerator, auto, generator, muffler, parts
- carcass, aerial bomb, anatomy, anti-personnel bomb, ashes, axial skeleton, body, bomb, bombshell, bones, cadaver, carrion, clay, clod, concussion grenade, corpse
- carcinoma, benign tumour, callosity, callus, cancer, corn, cyst, excrescence, fungus, growth, malignant growth, metastatic tumour, mole, morbid growth, neoplasm, non-malignant tumour
- card catalogue, bibliography, catalogue, file, pigeon-hole
- card games, bingo, craps, hazard, horse racing, numbers, pinball, policy, roulette, shell game, sweepstakes
- card index, chart, contents, index, table, table of contents
- card ledger, balance sheet, bankbook, books, cash-book, inventory, journal, ledger, log, passbook, record book, register, registry
- card voting, colonization, floating, proportional representation, vote, voting
- card, ID card, ace, act, agenda, badge, batting order, behave, best bower, bill, bill of fare, binding twine, blueprint, bower, budget, bulletin board
- card-carrier, Greek, affiliate, associate, brother, committeeman, comrade, fellow, initiate, insider, joiner, member, pledge, sister
- card-carrying member, Greek, affiliate, associate, brother, committeeman, comrade, fellow, initiate, insider, joiner, member, pledge, sister
- card-carrying, authentic, candid, genuine, good, honest, honest-to-God, lawful, legitimate, lifelike, literal, natural, naturalistic, original, pure, real
- cardamom, condiment, herb, pepper, salt, spice
- cardboard, leaf, page, paper, ream, sheet, stationery, stilted, wooden
- cardiac arrest, angina, aortic insufficiency, apoplectic stroke, apoplexy, arrhythmia, arteriosclerosis, atherosclerosis, atrial fibrillation, auricular fibrillation, beriberi heart, cardiac insufficiency, cardiac shock, cardiac thrombosis, congenital heart disease, coronary
- cardiac epilepsy, access, apoplexy, arrest, attack, blockade, convulsion, cramp, epilepsy, falling sickness, fit, frenzy, ictus, lockjaw, occlusion, paroxysm
