| calx | (noun) a white crystalline oxide used in the production of calcium hydroxide | Synonyms: burnt lime, calcined lime, calcium oxide, fluxing lime, lime, quicklime, unslaked lime |
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| calycle | (noun) a small cup-shaped structure (as a taste bud or optic cup or cavity of a coral containing a polyp) | Synonyms: caliculus, calyculus |
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| (noun) a group of bracts simulating a calyx as in a carnation or hibiscus | Synonyms: calyculus, epicalyx, false calyx |
| calyculus | (noun) a small cup-shaped structure (as a taste bud or optic cup or cavity of a coral containing a polyp) | Synonyms: caliculus, calycle |
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| (noun) a group of bracts simulating a calyx as in a carnation or hibiscus | Synonyms: calycle, epicalyx, false calyx |
| calypso | (noun) rare north temperate bog orchid bearing a solitary white to pink flower marked with purple at the tip of an erect reddish stalk above 1 basal leaf | Synonyms: Calypso bulbosa, fairy-slipper |
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| calypter | (noun) scalelike structure between the base of the wing and the halter of a two-winged fly | Synonyms: alula |
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| calyptra | (noun) the hood or cap covering the calyx of certain plants: e.g., the California poppy | - |
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| calyx | (noun) (botany) the whorl of sepals of a flower collectively forming the outer floral envelope or layer of the perianth enclosing and supporting the developing bud; usually green | - |
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| cam | (noun) a rotating disk shaped to convert circular into linear motion | - |
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| camachile | (noun) common thorny tropical American tree having terminal racemes of yellow flowers followed by sickle-shaped or circinate edible pods and yielding good timber and a yellow dye and mucilaginous gum | Synonyms: huamachil, manila tamarind, Pithecellobium dulce, wild tamarind |
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| camail | (noun) a medieval hood of mail suspended from a basinet to protect the head and neck | Synonyms: aventail, ventail |
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| camaraderie | (noun) the quality of affording easy familiarity and sociability | Synonyms: chumminess, comradeliness, comradery, comradeship |
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| camarilla | (noun) a clique (often secret) that seeks power usually through intrigue | Synonyms: cabal, faction, junto |
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| camas | (noun) any of several plants of the genus Camassia; North and South America | Synonyms: camash, camass, camosh, quamash |
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| camash | (noun) any of several plants of the genus Camassia; North and South America | Synonyms: camas, camass, camosh, quamash |
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| camass | (noun) any of several plants of the genus Camassia; North and South America | Synonyms: camas, camash, camosh, quamash |
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| camber | (noun) the alignment of the wheels of a motor vehicle closer together at the bottom than at the top | - |
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| (noun) a slope in the turn of a road or track; the outside is higher than the inside in order to reduce the effects of centrifugal force | Synonyms: bank, cant |
| (noun) a slight convexity (as of the surface of a road) | - |
| cambium | (noun) the inner layer of the periosteum | - |
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| (noun) a formative one-cell layer of tissue between xylem and phloem in most vascular plants that is responsible for secondary growth | - |
| cambric | (noun) a finely woven white linen | - |
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| camcorder | (noun) a portable television camera and videocassette recorder | - |
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| camel | (noun) cud-chewing mammal used as a draft or saddle animal in desert regions | - |
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| camelhair | (noun) a soft tan cloth made with the hair of a camel | Synonyms: camel's hair |
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| camelia | (noun) any of several shrubs or small evergreen trees having solitary white or pink or reddish flowers | Synonyms: camellia |
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| camellia | (noun) any of several shrubs or small evergreen trees having solitary white or pink or reddish flowers | Synonyms: camelia |
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| camelopard | (noun) tallest living quadruped; having a spotted coat and small horns and very long neck and legs; of savannahs of tropical Africa | Synonyms: Giraffa camelopardalis, giraffe |
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| camelpox | (noun) a viral disease of camels closely related to smallpox | - |
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| cameo | (noun) engraving or carving in low relief on a stone (as in a brooch or ring) | - |
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| camera | (noun) equipment for taking photographs (usually consisting of a lightproof box with a lens at one end and light-sensitive film at the other) | Synonyms: photographic camera |
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| (noun) television equipment consisting of a lens system that focuses an image on a photosensitive mosaic that is scanned by an electron beam | Synonyms: television camera, tv camera |
| cameraman | (noun) a photographer who operates a movie camera | Synonyms: camera operator, cinematographer |
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| camgirl | (noun) a female performer who performs sexual acts by camera on the internet | - |
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| camion | (noun) a low heavy horse cart without sides; used for haulage | Synonyms: dray |
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| (noun) a large truck designed to carry heavy loads; usually without sides | Synonyms: lorry |
| camise | (noun) a loose shirt or tunic; originally worn in the Middle Ages | - |
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| camisole | (noun) a short negligee | - |
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| (noun) a short sleeveless undergarment for women | Synonyms: underbodice |
| camlet | (noun) a fabric of Asian origin; originally made of silk and camel's hair | - |
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| (noun) a garment made of camlet fabric | - |
| camo | (noun) fabric dyed with splotches of green and brown and black and tan; intended to make the wearer of a garment made of this fabric hard to distinguish from the background | Synonyms: camouflage |
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| camomile | (noun) Eurasian plant with apple-scented foliage and white-rayed flowers and feathery leaves used medicinally; in some classification systems placed in genus Anthemis | Synonyms: Anthemis nobilis, Chamaemelum nobilis, chamomile |
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| camosh | (noun) any of several plants of the genus Camassia; North and South America | Synonyms: camas, camash, camass, quamash |
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| camouflage | (noun) the act of concealing the identity of something by modifying its appearance | Synonyms: disguise |
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| (noun) device or stratagem for concealment or deceit | - |
| (noun) fabric dyed with splotches of green and brown and black and tan; intended to make the wearer of a garment made of this fabric hard to distinguish from the background | Synonyms: camo |
| (noun) an outward semblance that misrepresents the true nature of something | Synonyms: disguise |
| camp | (noun) temporary living quarters specially built by the army for soldiers | Synonyms: bivouac, cantonment, encampment |
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| (noun) temporary lodgings in the country for travelers or vacationers | - |
| (noun) a penal institution (often for forced labor) | - |
| (noun) a site where care and activities are provided for children during the summer months | Synonyms: summer camp |
| (noun) shelter for persons displaced by war or political oppression or for religious beliefs | Synonyms: refugee camp |
| (noun) something that is considered amusing not because of its originality but because of its unoriginality | - |
| (noun) a group of people living together in a camp | - |
| (noun) an exclusive circle of people with a common purpose | Synonyms: clique, coterie, ingroup, inner circle, pack |
| campaign | (noun) several related operations aimed at achieving a particular goal (usually within geographical and temporal constraints) | Synonyms: military campaign |
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| (noun) an overland journey by hunters (especially in Africa) | Synonyms: hunting expedition, safari |
| (noun) a series of actions advancing a principle or tending toward a particular end | Synonyms: cause, crusade, drive, effort, movement |
| (noun) a race between candidates for elective office | Synonyms: political campaign, run |
| campaigner | (noun) a politician who is running for public office | Synonyms: candidate, nominee |
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| campaigning | (noun) the campaign of a candidate to be elected | Synonyms: candidacy, candidature, electioneering, political campaign |
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| campana | (noun) the shape of a bell | Synonyms: bell, bell shape |
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| campanile | (noun) a bell tower; usually stands alone unattached to a building | Synonyms: belfry |
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| campanula | (noun) any of various plants of the genus Campanula having blue or white bell-shaped flowers | Synonyms: bellflower |
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| campeachy | (noun) spiny shrub or small tree of Central America and West Indies having bipinnate leaves and racemes of small bright yellow flowers and yielding a hard brown or brownish-red heartwood used in preparing a black dye | Synonyms: bloodwood tree, Haematoxylum campechianum, logwood, logwood tree |
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| camper | (noun) a recreational vehicle equipped for camping out while traveling | Synonyms: camping bus, motor home |
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| (noun) someone living temporarily in a tent or lodge for recreation | - |
| campfire | (noun) a small outdoor fire for warmth or cooking (as at a camp) | - |
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| campground | (noun) a site where people on holiday can pitch a tent | Synonyms: bivouac, camping area, camping ground, camping site, campsite, encampment |
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| camphor | (noun) a resin obtained from the camphor tree; used in making celluloid and liniment | - |
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| camphorweed | (noun) aromatic plant of western United States | Synonyms: Trichostema lanceolatum, turpentine camphor weed, vinegarweed |
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| camping | (noun) the act of encamping and living in tents in a camp | Synonyms: bivouacking, encampment, tenting |
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| campion | (noun) any plant of the genus Silene | Synonyms: catchfly, silene |
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| campmate | (noun) someone who lives in the same camp you do | - |
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| campong | (noun) a native malay village | Synonyms: kampong |
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| campsite | (noun) a site where people on holiday can pitch a tent | Synonyms: bivouac, campground, camping area, camping ground, camping site, encampment |
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| campstool | (noun) a folding stool | - |
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| campus | (noun) a field on which the buildings of a university are situated | - |
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| camshaft | (noun) an engine shaft with cams attached to it | - |
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| camwood | (noun) small shrubby African tree with hard wood used as a dyewood yielding a red dye | Synonyms: African sandalwood, Baphia nitida |
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| can | (noun) airtight sealed metal container for food or drink or paint etc. | Synonyms: tin, tin can |
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| (noun) a room or building equipped with one or more toilets | Synonyms: bathroom, john, lav, lavatory, privy, toilet |
| (noun) a plumbing fixture for defecation and urination | Synonyms: commode, crapper, pot, potty, stool, throne, toilet |
| (noun) the fleshy part of the human body that you sit on | Synonyms: arse, ass, backside, behind, bottom, bum, buns, butt, buttocks, derriere, fanny, fundament, hind end, hindquarters, keister, nates, posterior, prat, rear, rear end, rump, seat, stern, tail, tail end, tooshie, tush |
| (noun) a buoy with a round bottom and conical top | Synonyms: can buoy |
| (noun) the quantity contained in a can | Synonyms: canful |
| canafistola | (noun) deciduous or semi-evergreen tree having scented sepia to yellow flowers in drooping racemes and pods whose pulp is used medicinally; tropical Asia and Central and South America and Australia | Synonyms: canafistula, Cassia fistula, drumstick tree, golden shower tree, pudding pipe tree, purging cassia |
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| canafistula | (noun) deciduous or semi-evergreen tree having scented sepia to yellow flowers in drooping racemes and pods whose pulp is used medicinally; tropical Asia and Central and South America and Australia | Synonyms: canafistola, Cassia fistula, drumstick tree, golden shower tree, pudding pipe tree, purging cassia |
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| canal | (noun) long and narrow strip of water made for boats or for irrigation | - |
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| (noun) a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance | Synonyms: channel, duct, epithelial duct |
| (noun) (astronomy) an indistinct surface feature of Mars once thought to be a system of channels; they are now believed to be an optical illusion | - |
| canaliculus | (noun) a small canal or duct as in some bones and parts of plants | - |
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| canalisation | (noun) the production of a canal or a conversion to canals | Synonyms: canalization |
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| (noun) management through specified channels of communication | Synonyms: canalization, channelisation, channelization |
| canalization | (noun) the production of a canal or a conversion to canals | Synonyms: canalisation |
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| (noun) management through specified channels of communication | Synonyms: canalisation, channelisation, channelization |
| canape | (noun) an appetizer consisting usually of a thin slice of bread or toast spread with caviar or cheese or other savory food | - |
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| canard | (noun) a deliberately misleading fabrication | - |
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| canary | (noun) any of several small Old World finches | Synonyms: canary bird |
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| (noun) a moderate yellow with a greenish tinge | Synonyms: canary yellow |
| (noun) a female singer | - |
| (noun) someone acting as an informer or decoy for the police | Synonyms: fink, sneak, sneaker, snitch, snitcher, stool pigeon, stoolie, stoolpigeon |
| canasta | (noun) a form of rummy using two decks of cards and four jokers; jokers and deuces are wild; the object is to form groups of the same rank | Synonyms: basket rummy, meld |
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| canavanine | (noun) an amino acid found in the jack bean | - |
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| cancan | (noun) a high-kicking dance of French origin performed by a female chorus line | - |
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| cancel | (noun) a notation cancelling a previous sharp or flat | Synonyms: natural |
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| cancellation | (noun) the act of cancelling; calling off some arrangement | - |
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| (noun) the speech act of revoking or annulling or making void | - |
| cancer | (noun) any malignant growth or tumor caused by abnormal and uncontrolled cell division; it may spread to other parts of the body through the lymphatic system or the blood stream | Synonyms: malignant neoplastic disease |
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| cancerweed | (noun) sage of eastern United States | Synonyms: cancer weed, Salvia lyrata |
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| cancroid | (noun) the most common form of skin cancer | Synonyms: squamous cell carcinoma |
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| candela | (noun) the basic unit of luminous intensity adopted under the Systeme International d'Unites; equal to 1/60 of the luminous intensity per square centimeter of a black body radiating at the temperature of 2,046 degrees Kelvin | Synonyms: candle, cd, standard candle |
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| candelabra | (noun) branched candlestick; ornamental; has several lights | Synonyms: candelabrum |
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| candelabrum | (noun) branched candlestick; ornamental; has several lights | Synonyms: candelabra |
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| candelilla | (noun) wax-coated shrub of northern Mexico and southwestern United States | Synonyms: Euphorbia antisyphilitica |
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| (noun) wax-coated Mexican shrub related to Euphorbia antisyphilitica | Synonyms: Pedilanthus bracteatus, Pedilanthus pavonis |
| candida | (noun) any of the yeastlike imperfect fungi of the genus Candida | - |
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| candidacy | (noun) the campaign of a candidate to be elected | Synonyms: campaigning, candidature, electioneering, political campaign |
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| candidate | (noun) someone who is considered for something (for an office or prize or honor etc.) | Synonyms: prospect |
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| (noun) a politician who is running for public office | Synonyms: campaigner, nominee |
| candidature | (noun) the campaign of a candidate to be elected | Synonyms: campaigning, candidacy, electioneering, political campaign |
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| candidiasis | (noun) an infection caused by fungi of the genus Monilia or Candida (especially Candida albicans) | Synonyms: monilia disease, moniliasis |
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| candidness | (noun) the quality of being honest and straightforward in attitude and speech | Synonyms: candor, candour, directness, forthrightness, frankness |
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| candle | (noun) stick of wax with a wick in the middle | Synonyms: taper, wax light |
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| (noun) the basic unit of luminous intensity adopted under the Systeme International d'Unites; equal to 1/60 of the luminous intensity per square centimeter of a black body radiating at the temperature of 2,046 degrees Kelvin | Synonyms: candela, cd, standard candle |
| candleberry | (noun) deciduous aromatic shrub of eastern North America with grey-green wax-coated berries | Synonyms: bayberry, Myrica pensylvanica, swamp candleberry, waxberry |
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| candlelight | (noun) the light provided by a burning candle | Synonyms: candle flame |
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| candlemaker | (noun) a person who makes or sells candles | - |
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| candlenut | (noun) large tree native to southeastern Asia; the nuts yield oil used in varnishes; nut kernels strung together are used locally as candles | Synonyms: Aleurites moluccana, varnish tree |
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| (noun) seed of candlenut tree; source of oil used in varnishes | - |
| candlepin | (noun) a bowling pin that is thin by comparison with a tenpin | - |
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| candlepins | (noun) a bowling game using slender bowling pins | Synonyms: candlepin bowling |
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| candlepower | (noun) luminous intensity measured in candelas | Synonyms: light intensity |
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| candlesnuffer | (noun) an implement with a small cup at the end of a handle; used to extinguish the flame of a candle | - |
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| candlestick | (noun) a holder with sockets for candles | Synonyms: candle holder |
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| candlewick | (noun) the wick of a candle | - |
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| (noun) loops of soft yarn are cut to give a tufted pattern | - |
| candlewood | (noun) any of several resinous trees or shrubs often burned for light | - |
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| candor | (noun) the quality of being honest and straightforward in attitude and speech | Synonyms: candidness, candour, directness, forthrightness, frankness |
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| (noun) ability to make judgments free from discrimination or dishonesty | Synonyms: candour, fair-mindedness, fairness |