| aardvark | (noun) nocturnal burrowing mammal of the grasslands of Africa that feeds on termites; sole extant representative of the order Tubulidentata | Synonyms: ant bear, anteater, Orycteropus afer |
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| aardwolf | (noun) striped hyena of southeast Africa that feeds chiefly on insects | Synonyms: Proteles cristata |
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| acardia | (noun) congenital absence of the heart (as in the development of some monsters) | - |
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| angiocardiogram | (noun) a series of X rays representing the action of the heart and its blood vessels after the injection of a radiopaque substance | - |
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| ard | (noun) a simple light plough without a mouldboard. | Synonyms: ard plough, scratch plough |
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| ardeb | (noun) a unit of dry measure used in Egypt | - |
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| ardor | (noun) intense feeling of love | Synonyms: ardour |
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| (noun) a feeling of strong eagerness (usually in favor of a person or cause) | Synonyms: ardour, elan, zeal |
| (noun) feelings of great warmth and intensity | Synonyms: ardour, fervency, fervidness, fervor, fervour, fire |
| ardour | (noun) intense feeling of love | Synonyms: ardor |
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| (noun) a feeling of strong eagerness (usually in favor of a person or cause) | Synonyms: ardor, elan, zeal |
| (noun) feelings of great warmth and intensity | Synonyms: ardor, fervency, fervidness, fervor, fervour, fire |
| arduousness | (noun) extreme effortfulness | Synonyms: strenuousness |
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| armguard | (noun) a protective covering for the wrist or arm that is used in archery and fencing and other sports | Synonyms: bracer |
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| award | (noun) a grant made by a law court | Synonyms: awarding |
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| (noun) a tangible symbol signifying approval or distinction | Synonyms: accolade, honor, honour, laurels |
| (noun) something given for victory or superiority in a contest or competition or for winning a lottery | Synonyms: prize |
| awarding | (noun) a grant made by a law court | Synonyms: award |
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| awkwardness | (noun) the carriage of someone whose movements and posture are ungainly or inelegant | Synonyms: clumsiness |
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| (noun) the quality of an embarrassing situation | Synonyms: nuisance value |
| (noun) trouble in carrying or managing caused by bulk or shape | Synonyms: cumbersomeness, unwieldiness |
| (noun) the inelegance of someone stiff and unrelaxed (as by embarrassment) | Synonyms: clumsiness, gracelessness, stiffness |
| (noun) unskillfulness resulting from a lack of training | Synonyms: clumsiness, ineptitude, ineptness, maladroitness, slowness |
| backboard | (noun) a board used to support the back of someone or something | - |
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| (noun) a raised vertical board with basket attached; used to play basketball | Synonyms: basketball backboard |
| backwardation | (noun) the market condition wherein the price of a forward or futures contract is trading below the expected spot price at contract maturity. | - |
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| backwardness | (noun) lack of normal development of intellectual capacities | Synonyms: mental retardation, retardation, slowness, subnormality |
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| backyard | (noun) the grounds in back of a house | - |
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| ballistocardiogram | (noun) a graphical recording made by a ballistocardiograph | - |
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| ballistocardiograph | (noun) a medical instrument that measures the mechanical force of cardiac contractions and the amount of blood passing through the heart during a specified period by measuring the recoil of the body as blood is pumped from the ventricles | Synonyms: cardiograph |
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| bard | (noun) an ornamental caparison for a horse | - |
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| (noun) a lyric poet | - |
| bardolatry | (noun) the idolization of William Shakespeare | - |
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| barnyard | (noun) a yard adjoining a barn | - |
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| baseboard | (noun) a molding covering the joint formed by a wall and the floor | Synonyms: mopboard, skirting board |
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| bastard | (noun) derogatory term for a variation that is not genuine; something irregular or inferior or of dubious origin | Synonyms: mongrel |
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| (noun) insulting terms of address for people who are stupid or irritating or ridiculous | Synonyms: asshole, cocksucker, dickhead, mother fucker, motherfucker, prick, shit, SOB, son of a bitch, whoreson |
| (noun) the illegitimate offspring of unmarried parents | Synonyms: by-blow, illegitimate, illegitimate child, love child, whoreson |
| bastardisation | (noun) an act that debases or corrupts | Synonyms: bastardization |
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| bastardization | (noun) an act that debases or corrupts | Synonyms: bastardisation |
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| (noun) declaring or rendering bastard | - |
| bastardy | (noun) the status of being born to parents who were not married | Synonyms: bar sinister, illegitimacy |
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| beard | (noun) tuft of strong filaments by which e.g. a mussel makes itself fast to a fixed surface | Synonyms: byssus |
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| (noun) hairy growth on or near the face of certain mammals | - |
| (noun) the hair growing on the lower part of a man's face | Synonyms: face fungus, whiskers |
| (noun) a person who diverts suspicion from someone (especially a woman who accompanies a male homosexual in order to conceal his homosexuality) | - |
| (noun) a tuft or growth of hairs or bristles on certain plants such as iris or grasses | - |
| beardedness | (noun) The quality of having a beard. | - |
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| billboard | (noun) large outdoor signboard | Synonyms: hoarding |
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| billiards | (noun) any of several games played on rectangular cloth-covered table (with cushioned edges) in which long tapering cue sticks are used to propel ivory (or composition) balls | - |
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| biohazard | (noun) any bacterium or virus or toxin that could be used in biological warfare | Synonyms: biological agent |
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| (noun) hazard to humans or the environment resulting from biological agents or conditions | - |
| blackboard | (noun) sheet of slate; for writing with chalk | Synonyms: chalkboard |
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| blackguard | (noun) someone who is morally reprehensible | Synonyms: bounder, cad, dog, heel, hound |
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| blizzard | (noun) a series of unexpected and unpleasant occurrences | Synonyms: rash |
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| (noun) a storm with widespread snowfall accompanied by strong winds | Synonyms: snowstorm |
| blowhard | (noun) a very boastful and talkative person | Synonyms: boaster, braggart, bragger, line-shooter, vaunter |
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| board | (noun) a flat piece of material designed for a special purpose | - |
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| (noun) a table at which meals are served | Synonyms: dining table |
| (noun) electrical device consisting of a flat insulated surface that contains switches and dials and meters for controlling other electrical devices | Synonyms: control board, control panel, instrument panel, panel |
| (noun) a vertical surface on which information can be displayed to public view | Synonyms: display board, display panel |
| (noun) a printed circuit that can be inserted into expansion slots in a computer to increase the computer's capabilities | Synonyms: add-in, card, circuit board, circuit card, plug-in |
| (noun) a flat portable surface (usually rectangular) designed for board games | Synonyms: gameboard |
| (noun) food or meals in general | Synonyms: table |
| (noun) a committee having supervisory powers | - |
| (noun) a stout length of sawn timber; made in a wide variety of sizes and used for many purposes | Synonyms: plank |
| boarder | (noun) a tenant in someone's house | Synonyms: lodger, roomer |
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| (noun) a pupil who lives at school during term time | - |
| (noun) someone who forces their way aboard ship | - |
| boarding | (noun) the act of passengers and crew getting aboard a ship or aircraft | Synonyms: embarkation, embarkment |
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| (noun) a structure of boards | - |
| boardinghouse | (noun) a private house that provides accommodations and meals for paying guests | Synonyms: boarding house |
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| boardroom | (noun) a room where a committee meets (such as the board of directors of a company) | Synonyms: council chamber |
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| boards | (noun) (used in the plural) the boarding that surrounds an ice hockey rink | - |
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| (noun) (used in the plural) the stage of a theater | - |
| boardwalk | (noun) a walkway made of wooden boards; usually at seaside | - |
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| boatyard | (noun) a place where boats are built or maintained or stored | - |
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| bodyguard | (noun) a group of men who escort and protect some important person | - |
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| (noun) someone who escorts and protects a prominent person | Synonyms: escort |
| bollard | (noun) a strong post (as on a wharf or quay or ship for attaching mooring lines) | Synonyms: bitt |
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| bombard | (noun) a large shawm; the bass member of the shawm family | Synonyms: bombardon |
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| bombardier | (noun) the member of a bomber crew responsible for using the bombsight and releasing the bombs on the target | - |
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| (noun) a noncommissioned officer in the British artillery | - |
| bombardment | (noun) the heavy fire of artillery to saturate an area rather than hit a specific target | Synonyms: barrage, barrage fire, battery, shelling |
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| (noun) an attack by dropping bombs | Synonyms: bombing |
| (noun) the act (or an instance) of subjecting a body or substance to the impact of high-energy particles (as electrons or alpha rays) | - |
| (noun) the rapid and continuous delivery of linguistic communication (spoken or written) | Synonyms: barrage, onslaught, outpouring |
| bombardon | (noun) a large shawm; the bass member of the shawm family | Synonyms: bombard |
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| (noun) a tuba that coils over the shoulder of the musician | Synonyms: helicon |
| boulevard | (noun) a wide street or thoroughfare | Synonyms: avenue |
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| boulevardier | (noun) a visitor of a city boulevard (especially in Paris) | - |
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| bradycardia | (noun) abnormally slow heartbeat | - |
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| brassard | (noun) armor plate that protects the arm | - |
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| breadboard | (noun) a wooden or plastic board on which dough is kneaded or bread is sliced | Synonyms: bread board |
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| briard | (noun) old French breed of large strong usually black dogs having a long tail and long wavy and slightly stiff coat | - |
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| brickyard | (noun) a place where bricks are made and sold | Synonyms: brickfield |
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| buckboard | (noun) an open horse-drawn carriage with four wheels; has a seat attached to a flexible board between the two axles | - |
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| bustard | (noun) large heavy-bodied chiefly terrestrial game bird capable of powerful swift flight; classified with wading birds but frequents grassy steppes | - |
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| buzzard | (noun) a New World vulture that is common in South America and Central America and the southern United States | Synonyms: Cathartes aura, turkey buzzard, turkey vulture |
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| (noun) the common European short-winged hawk | Synonyms: Buteo buteo |
| 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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| canard | (noun) a deliberately misleading fabrication | - |
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| card | (noun) one of a set of small pieces of stiff paper marked in various ways and used for playing games or for telling fortunes | - |
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| (noun) a printed circuit that can be inserted into expansion slots in a computer to increase the computer's capabilities | Synonyms: add-in, board, circuit board, circuit card, plug-in |
| (noun) a rectangular piece of stiff paper used to send messages (may have printed greetings or pictures) | - |
| (noun) a card certifying the identity of the bearer | Synonyms: identity card |
| (noun) a sign posted in a public place as an advertisement | Synonyms: bill, notice, placard, poster, posting |
| (noun) (baseball) a list of batters in the order in which they will bat | Synonyms: batting order, lineup |
| (noun) a printed or written greeting that is left to indicate that you have visited | Synonyms: calling card, visiting card |
| (noun) a list of dishes available at a restaurant | Synonyms: bill of fare, carte, carte du jour, menu |
| (noun) (golf) a record of scores (as in golf) | Synonyms: scorecard |
| (noun) a witty amusing person who makes jokes | Synonyms: wag, wit |
| (noun) thin cardboard, usually rectangular | - |
| cardamom | (noun) aromatic seeds used as seasoning like cinnamon and cloves especially in pickles and barbecue sauces | Synonyms: cardamon, cardamum |
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| (noun) rhizomatous herb of India having aromatic seeds used as seasoning | Synonyms: cardamon, Elettaria cardamomum |
| cardamon | (noun) aromatic seeds used as seasoning like cinnamon and cloves especially in pickles and barbecue sauces | Synonyms: cardamom, cardamum |
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| (noun) rhizomatous herb of India having aromatic seeds used as seasoning | Synonyms: cardamom, Elettaria cardamomum |
| cardamum | (noun) aromatic seeds used as seasoning like cinnamon and cloves especially in pickles and barbecue sauces | Synonyms: cardamom, cardamon |
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| cardboard | (noun) a stiff moderately thick paper | Synonyms: composition board |
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| cardcase | (noun) a small case for carrying business cards | - |
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| cardcastle | (noun) an unstable construction with playing cards | Synonyms: card-house, cardhouse, house of cards |
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| cardholder | (noun) a player who holds a card or cards in a card game | - |
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| (noun) a person who holds a credit card or debit card | - |
| cardhouse | (noun) an unstable construction with playing cards | Synonyms: card-house, cardcastle, house of cards |
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| cardia | (noun) the opening into the stomach and that part of the stomach connected to the esophagus | - |
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| cardigan | (noun) knitted jacket that is fastened up the front with buttons or a zipper | - |
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| cardinal | (noun) crested thick-billed North American finch having bright red plumage in the male | Synonyms: cardinal grosbeak, Cardinalis cardinalis, redbird, Richmondena Cardinalis |
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| (noun) a variable color averaging a vivid red | Synonyms: carmine |
| (noun) (Roman Catholic Church) one of a group of more than 100 prominent bishops in the Sacred College who advise the Pope and elect new Popes | - |
| (noun) the number of elements in a mathematical set; denotes a quantity but not the order | Synonyms: cardinal number |
| cardinalate | (noun) the office of cardinal | Synonyms: cardinalship |
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| (noun) (Roman Catholic Church) the body of all cardinals of the church; elects and advises the pope | Synonyms: College of Cardinals, Sacred College, Sacred College of Cardinals |
| cardinalfish | (noun) small red fishes of coral reefs and inshore tropical waters | - |
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| cardinality | (noun) (mathematics) the number of elements in a set or group (considered as a property of that grouping) | - |
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| cardinalship | (noun) the office of cardinal | Synonyms: cardinalate |
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| cardiogram | (noun) a graphical recording of the cardiac cycle produced by an electrocardiograph | Synonyms: ECG, EKG, electrocardiogram |
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| cardiograph | (noun) medical instrument that records electric currents associated with contractions of the heart | Synonyms: electrocardiograph |
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| (noun) a medical instrument that measures the mechanical force of cardiac contractions and the amount of blood passing through the heart during a specified period by measuring the recoil of the body as blood is pumped from the ventricles | Synonyms: ballistocardiograph |
| cardiography | (noun) diagnostic procedure consisting of recording the activity of the heart electronically with a cardiograph (and producing a cardiogram) | Synonyms: electrocardiography |
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| cardioid | (noun) an epicycloid in which the rolling circle equals the fixed circle | - |
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| cardiologist | (noun) a specialist in cardiology; a specialist in the structure and function and disorders of the heart | Synonyms: heart specialist, heart surgeon |
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| cardiology | (noun) the branch of medicine dealing with the heart and its diseases | - |
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| cardiomegaly | (noun) an abnormal enlargement of the heart | Synonyms: enlarged heart, megacardia, megalocardia |
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| cardiomyopathy | (noun) a disorder (usually of unknown origin) of the heart muscle (myocardium) | Synonyms: myocardiopathy |
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| cardiopathy | (noun) a disease of the heart | Synonyms: heart disease |
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| cardiospasm | (noun) a spasm of the cardiac sphincter (between the esophagus and the stomach); if the cardiac sphincter does not relax during swallowing the passage of food into the stomach is obstructed | - |
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| carditis | (noun) inflammation of the heart | - |
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| cardoon | (noun) only parts eaten are roots and especially stalks (blanched and used as celery); related to artichokes | - |
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| (noun) southern European plant having spiny leaves and purple flowers cultivated for its edible leafstalks and roots | Synonyms: Cynara cardunculus |
| cardroom | (noun) a room for gambling on card games | - |
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| cards | (noun) a game played with playing cards | Synonyms: card game |
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| cardsharp | (noun) a professional card player who makes a living by cheating at card games | Synonyms: card shark, card sharp, card sharper, cardsharper, sharper, sharpie, sharpy |
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| cardsharper | (noun) a professional card player who makes a living by cheating at card games | Synonyms: card shark, card sharp, card sharper, cardsharp, sharper, sharpie, sharpy |
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| cashcard | (noun) a payment card that entitles the holder to receive cash | Synonyms: cash card |
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| centerboard | (noun) a retractable fin keel used on sailboats to prevent drifting to leeward | Synonyms: centreboard, drop keel, sliding keel |
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| centreboard | (noun) a retractable fin keel used on sailboats to prevent drifting to leeward | Synonyms: centerboard, drop keel, sliding keel |
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| chalkboard | (noun) sheet of slate; for writing with chalk | Synonyms: blackboard |
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| chard | (noun) long succulent whitish stalks with large green leaves | Synonyms: leaf beet, spinach beet, Swiss chard |
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| (noun) beet lacking swollen root; grown as a vegetable for its edible leaves and stalks | Synonyms: Beta vulgaris cicla, chard plant, leaf beet, spinach beet, Swiss chard |
| checkerboard | (noun) a board having 64 squares of two alternating colors | Synonyms: checker board, chequerboard |
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