| boa | (noun) any of several chiefly tropical constrictors with vestigial hind limbs | - |
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| (noun) a long thin fluffy scarf of feathers or fur | Synonyms: feather boa |
| boar | (noun) an uncastrated male hog | - |
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| (noun) Old World wild swine having a narrow body and prominent tusks from which most domestic swine come; introduced in United States | Synonyms: Sus scrofa, wild boar |
| 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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| boarfish | (noun) fish with a projecting snout | Synonyms: Capros aper |
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| (noun) fish with large eyes and long snouts | - |
| boarhound | (noun) large hound used in hunting wild boars | - |
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| boast | (noun) speaking of yourself in superlatives | Synonyms: boasting, jactitation, self-praise |
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| boaster | (noun) a very boastful and talkative person | Synonyms: blowhard, braggart, bragger, line-shooter, vaunter |
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| boastfulness | (noun) outspoken conceit | Synonyms: vainglory |
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| boasting | (noun) speaking of yourself in superlatives | Synonyms: boast, jactitation, self-praise |
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| boat | (noun) a small vessel for travel on water | - |
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| (noun) a dish (often boat-shaped) for serving gravy or sauce | Synonyms: gravy boat, gravy holder, sauceboat |
| boatbill | (noun) tropical American heron related to night herons | Synonyms: boat-billed heron, broadbill, Cochlearius cochlearius |
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| boatbuilder | (noun) a person who builds boats | - |
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| boater | (noun) a stiff hat made of straw with a flat crown | Synonyms: leghorn, Panama, Panama hat, sailor, skimmer, straw hat |
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| (noun) someone who drives or rides in a boat | Synonyms: boatman, waterman |
| boathouse | (noun) a shed at the edge of a river or lake; used to store boats | - |
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| boating | (noun) water travel for pleasure | Synonyms: yachting |
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| boatload | (noun) the amount of cargo that can be held by a boat or ship or a freight car | Synonyms: carload, shipload |
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| boatman | (noun) someone who drives or rides in a boat | Synonyms: boater, waterman |
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| boatmanship | (noun) skill in handling boats | - |
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| boatswain | (noun) a petty officer on a merchant ship who controls the work of other seamen | Synonyms: bo's'n, bo'sun, bos'n, bosun |
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| boatyard | (noun) a place where boats are built or maintained or stored | - |
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| bob | (noun) a short abrupt inclination (as of the head) | - |
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| (noun) a short or shortened tail of certain animals | Synonyms: bobtail, dock |
| (noun) a small float usually made of cork; attached to a fishing line | Synonyms: bobber, bobfloat, cork |
| (noun) a hanging weight, especially a metal ball on a string | - |
| (noun) a long racing sled (for 2 or more people) with a steering mechanism | Synonyms: bobsled, bobsleigh |
| (noun) a hair style for women and children; a short haircut all around | - |
| (noun) a former monetary unit in Great Britain | Synonyms: British shilling, shilling |
| bobber | (noun) a small float usually made of cork; attached to a fishing line | Synonyms: bob, bobfloat, cork |
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| bobbin | (noun) a winder around which thread or tape or film or other flexible materials can be wound | Synonyms: reel, spool |
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| bobble | (noun) the momentary juggling of a batted or thrown baseball | - |
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| bobby | (noun) an informal term for a British policeman | - |
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| bobbysock | (noun) a sock that reaches just above the ankle | Synonyms: anklet, anklets, bobbysocks |
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| bobbysocks | (noun) a sock that reaches just above the ankle | Synonyms: anklet, anklets, bobbysock |
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| bobbysoxer | (noun) an adolescent girl wearing bobby socks (common in the 1940s) | Synonyms: bobby-socker |
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| bobcat | (noun) small lynx of North America | Synonyms: bay lynx, Lynx rufus |
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| bobfloat | (noun) a small float usually made of cork; attached to a fishing line | Synonyms: bob, bobber, cork |
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| bobolink | (noun) migratory American songbird | Synonyms: Dolichonyx oryzivorus, reedbird, ricebird |
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| bobsled | (noun) a long racing sled (for 2 or more people) with a steering mechanism | Synonyms: bob, bobsleigh |
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| (noun) formerly two short sleds coupled together | Synonyms: bobsleigh |
| bobsledding | (noun) riding on a bobsled | - |
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| bobsleigh | (noun) a long racing sled (for 2 or more people) with a steering mechanism | Synonyms: bob, bobsled |
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| (noun) formerly two short sleds coupled together | Synonyms: bobsled |
| bobtail | (noun) a short or shortened tail of certain animals | Synonyms: bob, dock |
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| (noun) large sheepdog with a profuse shaggy bluish-grey-and-white coat and short tail; believed to trace back to the Roman occupation of Britain | Synonyms: Old English sheepdog |
| bobwhite | (noun) a popular North American game bird; named for its call | Synonyms: bobwhite quail, partridge |
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| bocce | (noun) Italian bowling played on a long narrow dirt court | Synonyms: bocci, boccie |
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| bocci | (noun) Italian bowling played on a long narrow dirt court | Synonyms: bocce, boccie |
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| boccie | (noun) Italian bowling played on a long narrow dirt court | Synonyms: bocce, bocci |
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| bocconia | (noun) small Central American tree having loose racemes of purple-tinted green flowers | Synonyms: Bocconia frutescens, tree celandine |
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| (noun) herb of China and Japan widely cultivated for its plumelike panicles of creamy white flowers | Synonyms: Macleaya cordata, plume poppy |
| bock | (noun) a very strong lager traditionally brewed in the fall and aged through the winter for consumption in the spring | Synonyms: bock beer |
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| bod | (noun) alternative names for the body of a human being | Synonyms: anatomy, build, chassis, figure, flesh, form, frame, human body, material body, physical body, physique, shape, soma |
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| bodega | (noun) a small Hispanic shop selling wine and groceries | - |
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| bodice | (noun) part of a dress above the waist | - |
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| boding | (noun) a feeling of evil to come | Synonyms: foreboding, premonition, presentiment |
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| bodkin | (noun) a blunt needle for threading ribbon through loops | Synonyms: threader |
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| (noun) a small sharp-pointed tool for punching holes in leather or fabric | - |
| (noun) formerly a long hairpin; usually with an ornamental head | - |
| (noun) a dagger with a slender blade | Synonyms: poniard |
| body | (noun) the external structure of a vehicle | - |
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| (noun) a resonating chamber in a musical instrument (as the body of a violin) | Synonyms: soundbox |
| (noun) the property of holding together and retaining its shape | Synonyms: consistence, consistency, substance |
| (noun) the main mass of a thing | - |
| (noun) the entire physical structure of an organism (an animal, plant, or human being) | Synonyms: organic structure |
| (noun) the body excluding the head and neck and limbs | Synonyms: torso, trunk |
| (noun) a natural object consisting of a dead animal or person | Synonyms: dead body |
| (noun) the central message of a communication | - |
| (noun) a group of persons associated by some common tie or occupation and regarded as an entity | - |
| (noun) a collection of particulars considered as a system | - |
| (noun) an individual 3-dimensional object that has mass and that is distinguishable from other objects | - |
| bodybuilder | (noun) someone who does special exercises to develop a brawny musculature | Synonyms: muscle-builder, muscle builder, musclebuilder, muscleman |
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| bodybuilding | (noun) exercise that builds muscles through tension | Synonyms: anaerobic exercise, muscle building, musclebuilding |
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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 |
| bodywork | (noun) the work of making or repairing vehicle bodies | - |
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| (noun) the exterior body of a motor vehicle | - |
| boeuf | (noun) meat from an adult domestic bovine | Synonyms: beef |
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| boffin | (noun) (British slang) a scientist or technician engaged in military research | - |
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| bog | (noun) wet spongy ground of decomposing vegetation; has poorer drainage than a swamp; soil is unfit for cultivation but can be cut and dried and used for fuel | Synonyms: peat bog |
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| bogbean | (noun) perennial plant of Europe and America having racemes of white or purplish flowers and intensely bitter trifoliate leaves; often rooting at water margin and spreading across the surface | Synonyms: bog myrtle, buckbean, marsh trefoil, Menyanthes trifoliata, water shamrock |
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| bogey | (noun) an unidentified (and possibly enemy) aircraft | Synonyms: bogie, bogy |
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| (noun) a bogle or goblin; where used as a proper name, the Devil | Synonyms: bogie, bogy |
| (noun) (golf) a score of one stroke over par on a hole | - |
| bogeyman | (noun) an imaginary monster used to frighten children | Synonyms: booger, boogeyman, bugaboo, bugbear |
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| bogginess | (noun) The state or quality of being too wet and muddy to be easily walked on. | - |
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| bogie | (noun) an unidentified (and possibly enemy) aircraft | Synonyms: bogey, bogy |
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| (noun) a bogle or goblin; where used as a proper name, the Devil | Synonyms: bogey, bogy |
| bogmat | (noun) having narrow flat sickle-shaped submerged fronds; North America | Synonyms: mud midget, Wolffiella gladiata |
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| bogy | (noun) an unidentified (and possibly enemy) aircraft | Synonyms: bogey, bogie |
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| (noun) a bogle or goblin; where used as a proper name, the Devil | Synonyms: bogey, bogie |
| bohemia | (noun) a group of artists and writers with real or pretended artistic or intellectual aspirations and usually an unconventional life style | - |
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| bohemian | (noun) a nonconformist writer or artist who lives an unconventional life | - |
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| bohemianism | (noun) conduct characteristic of a bohemian | - |
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| bohrium | (noun) a transuranic element with atomic number 107 | Synonyms: atomic number 107, Bh, element 107 |
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| boil | (noun) the temperature at which a liquid boils at sea level | Synonyms: boiling point |
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| (noun) a painful sore with a hard core filled with pus | Synonyms: furuncle |
| boiler | (noun) sealed vessel where water is converted to steam | Synonyms: steam boiler |
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| (noun) a metal pot for stewing or boiling; usually has a lid | Synonyms: kettle |
| boilerplate | (noun) thick plate iron used in the production of boilers | - |
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| (noun) standard formulations uniformly found in certain types of legal documents or news stories | - |
| boilersuit | (noun) a loose protective coverall or smock worn over ordinary clothing for dirty work | Synonyms: boilers suit, overall |
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| boiling | (noun) cooking in a liquid that has been brought to a boil | Synonyms: simmering, stewing |
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| (noun) the application of heat to change something from a liquid to a gas | - |
| boisterousness | (noun) the property of being noisy and lively and unrestrained | - |
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| (noun) a turbulent and stormy state of the sea | - |
| bola | (noun) a rope with weights attached to the ends; is thrown to entangle the legs of an animal; of South American origin | - |
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| (noun) a cord fastened around the neck with an ornamental clasp and worn as a necktie | Synonyms: bola tie, bolo, bolo tie |
| bold | (noun) a typeface with thick heavy lines | Synonyms: bold face, boldface |
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| boldface | (noun) a typeface with thick heavy lines | Synonyms: bold, bold face |
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| boldness | (noun) the trait of being willing to undertake things that involve risk or danger | Synonyms: daring, hardihood, hardiness |
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| (noun) the quality of standing out strongly and distinctly | Synonyms: strikingness |
| (noun) impudent aggressiveness | Synonyms: brass, cheek, face, nerve |
| bole | (noun) the main stem of a tree; usually covered with bark; the bole is usually the part that is commercially useful for lumber | Synonyms: tree trunk, trunk |
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| (noun) a soft oily clay used as a pigment (especially a reddish brown pigment) | - |
| bolero | (noun) a Spanish dance in triple time accompanied by guitar and castanets | - |
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| (noun) a short jacket; worn mostly by women | - |
| (noun) music written in the rhythm of the bolero dance | - |
| bolete | (noun) any fungus of the family Boletaceae | - |
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| bolide | (noun) an especially luminous meteor (sometimes exploding) | Synonyms: fireball |
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| bolivar | (noun) the basic unit of money in Venezuela; equal to 100 centimos | - |
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| bolivia | (noun) a form of canasta in which sequences can be melded | - |
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| boliviano | (noun) the basic unit of money in Bolivia; equal to 100 centavos | - |
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| boll | (noun) the rounded seed-bearing capsule of a cotton or flax plant | - |
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| bollard | (noun) a strong post (as on a wharf or quay or ship for attaching mooring lines) | Synonyms: bitt |
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| bollock | (noun) a pulley-block at the head of a topmast | Synonyms: bullock block |
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| (noun) one of the two male reproductive glands that produce spermatozoa and secrete androgens | Synonyms: ball, ballock, egg, nut, orchis, testicle, testis |
| bollworm | (noun) any of various moth caterpillars that destroy cotton bolls | - |
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| bolo | (noun) long heavy knife with a single edge; of Philippine origin | Synonyms: bolo knife |
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| (noun) a cord fastened around the neck with an ornamental clasp and worn as a necktie | Synonyms: bola, bola tie, bolo tie |
| bologna | (noun) large smooth-textured smoked sausage of beef and veal and pork | Synonyms: Bologna sausage |
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| bologram | (noun) record or recording made by a bolometer | Synonyms: bolograph |
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| bolograph | (noun) record or recording made by a bolometer | Synonyms: bologram |
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| bolometer | (noun) an instrument that measures heat radiation; extremely sensitive | - |
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| boloney | (noun) pretentious or silly talk or writing | Synonyms: baloney, bilgewater, bosh, drool, humbug, taradiddle, tarradiddle, tommyrot, tosh, twaddle |
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| bolshie | (noun) emotionally charged terms used to refer to extreme radicals or revolutionaries | Synonyms: Bolshevik, bolshy, Marxist, red |
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| bolshy | (noun) emotionally charged terms used to refer to extreme radicals or revolutionaries | Synonyms: Bolshevik, bolshie, Marxist, red |
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