canyon, n. gorge, ravine, gulch.

cap, n. biggin, biggon, biggonnet, busby, coif, berretta, biretta, barret, caul, callot, head-gear, turban, fez, calotte, toque, mortarboard, mitre, tarboosh, Tam-o-Shanter, zuchetto, wimple, shako, morion, mozetta, casque, helmet, mutch, montero, domino, beaver, glengarry, calpac, thrum cap, beret, keffieh, mortier, mobcap.  Associated Word:  visor.

cap, v. crown, complete, consummate, surpass, exceed.

capability, n. ability, capacity, competency, qualification, efficiency, proficiency.

capable, a. able, qualified, susceptible, competent, efficient, proficient.  Antonyms:  See incapable.

cape, n. promontory, headland.

caper, n. dido, trick, prank, leap, gambol, curlycue.

caper, v. gambol, frisk, cavort, leap, skip, prance, capriole.

capital, a. principal, leading, chief, cardinal, foremost; (Colloq.) excellent, first-rate.

capital letter, n. majuscule (ancient manuscripts).  Associated word:  cyriologic.

capitation, n. poll-tax.

caprice, n. fancy, whim, notion, freak, vagary, crotchet, quirk, whimsey, fickleness.

capricious, a. fanciful, whimsical, vagarious, inconstant, fickle, crotchety, volatile.

cap-shaped, a. pileate, pileated.

capsize, v. upset, overturn.

captain, n. commander, chieftain, leader, chief:  skipper; colonel; master, foreman.

captious, a. critical, carping, censorious, caviling.

captivate, v. enchant, subdue, bewitch, fascinate, entrance, enamor, infatuate.

captivating, a. bewitching, fascinating, enchanting.  See charming.

captivation, n. fascination, infatuation, charming.

captivity, n. bondage, servitude, thralldom, vassalage, slavery.

capture, v. seize, catch, apprehend, arrest, corral, deprehend.

capture, n. prey, prize; apprehension, arrest, seizure, catching.

car, n. cart, vehicle, chariot, caboose, tender, cage, coach, tram, truck.

carbolic acid. phenol, phenic acid.

cardinal, a. principal, chief, superior, preeminent.

cardinal virtues. prudence, temperance, justice, fortitude.

cardinals, n. pl.  Associated Words:  propaganda, conclave, cardinalate.

care, n. concern, anxiety, worry, apprehension; oversight, charge, management, tutelage, custody; ward, charge, protege, responsibility; attention, heed, caution, regard, circumspection, carefulness.  Antonyms:  See carelessness.

careful, a. cautious, watchful, provident, chary, attentive, circumspect, considerate, heedful, prudent, discreet, wary, mindful, choice, sparing, observant.

carefulness, n. caution, wariness, circumspection, chariness, forethought, precaution, watchfulness, discretion, concern, cautiousness.

careless, a. negligent, unconcerned, indifferent, heedless, inattentive, regardless, lax, incautious, remiss, inconsiderate, nonchalant, neglectful, unwary, imprudent, indiscreet, improvident, reckless, desultory, perfunctory, devil-may-care, slovenly, slack, supine.