| breakfast | (noun) the first meal of the day (usually in the morning) | - |
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| (verb) eat an early morning meal | - |
| (verb) provide breakfast for | - |
| breastfeed | (verb) give suck to | Synonyms: give suck, lactate, nurse, suck, suckle, wet-nurse |
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| brickfield | (noun) a place where bricks are made and sold | Synonyms: brickyard |
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| brief | (adjective) concise and succinct | - |
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| (adjective) (of clothing) very short | Synonyms: abbreviated |
| (adjective) of short duration or distance | - |
| (noun) a condensed written summary or abstract | - |
| (noun) a document stating the facts and points of law of a client's case | Synonyms: legal brief |
| (verb) give essential information to someone | - |
| briefcase | (noun) a case with a handle; for carrying papers or files or books | - |
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| briefing | (noun) detailed instructions, as for a military operation | - |
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| briefless | (adjective) (of lawyers or barristers) lacking clients | - |
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| briefly | (adverb) for a short time | - |
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| (adverb) in a concise manner; in a few words | Synonyms: concisely, in brief, in short, shortly |
| briefness | (noun) the attribute of being brief or fleeting | Synonyms: brevity, transience |
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| (noun) the temporal property of being very short | - |
| briefs | (noun) (used in the plural) short tight-fitting underpants (trade name Jockey shorts) | Synonyms: Jockey shorts |
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| brimful | (adjective) filled up | Synonyms: brimfull, brimming |
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| brimfull | (adjective) filled up | Synonyms: brimful, brimming |
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| broadleaf | (adjective) having relatively broad rather than needlelike or scalelike leaves | Synonyms: broad-leafed, broad-leaved |
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| bromoform | (noun) colorless liquid haloform CHBr3 | Synonyms: tribromomethane |
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| bucketful | (noun) the quantity contained in a bucket | Synonyms: bucket |
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| buckminsterfullerene | (noun) a spheroidal fullerene; the first known example of a fullerene | Synonyms: buckyball |
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| buff | (adjective) of the yellowish-beige color of buff leather | - |
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| (noun) an implement consisting of soft material mounted on a block; used for polishing (as in manicuring) | Synonyms: buffer |
| (noun) a medium to dark tan color | Synonyms: caramel, caramel brown, raw sienna, yellowish brown |
| (noun) bare skin | - |
| (noun) an ardent follower and admirer | Synonyms: devotee, fan, lover |
| (noun) a soft thick undyed leather from the skins of e.g. buffalo or oxen | - |
| (verb) polish and make shiny | Synonyms: burnish, furbish |
| (verb) strike, beat repeatedly | Synonyms: buffet |
| buffalo | (noun) any of several Old World animals resembling oxen including, e.g., water buffalo, Cape buffalo | Synonyms: Old World buffalo |
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| (noun) large shaggy-haired brown bison of North American plains | Synonyms: American bison, American buffalo, Bison bison |
| (noun) meat from an American bison | - |
| (verb) intimidate or overawe | - |
| buffalofish | (noun) any of several large suckers of the Mississippi valley | Synonyms: buffalo fish |
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| (noun) large carp-like North American fish | - |
| buffer | (noun) a cushion-like device that reduces shock due to an impact | Synonyms: fender |
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| (noun) a power tool used to buff surfaces | Synonyms: polisher |
| (noun) an inclined metal frame at the front of a locomotive to clear the track | Synonyms: cowcatcher, fender, pilot |
| (noun) (computer science) a part of RAM used for temporary storage of data that is waiting to be sent to a device; used to compensate for differences in the rate of flow of data between components of a computer system | Synonyms: buffer storage, buffer store |
| (noun) an implement consisting of soft material mounted on a block; used for polishing (as in manicuring) | Synonyms: buff |
| (noun) a neutral zone between two rival powers that is created in order to diminish the danger of conflict | Synonyms: buffer zone |
| (noun) (chemistry) an ionic compound that resists changes in its pH | - |
| (verb) add a buffer (a solution) | - |
| (verb) protect from impact | Synonyms: cushion, soften |
| buffet | (noun) a piece of furniture that stands at the side of a dining room; has shelves and drawers | Synonyms: counter, sideboard |
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| (noun) usually inexpensive bar | Synonyms: snack bar, snack counter |
| (noun) a meal set out on a buffet at which guests help themselves | - |
| (verb) strike against forcefully | Synonyms: batter, knock about |
| (verb) strike, beat repeatedly | Synonyms: buff |
| buffeted | (adjective) pounded or hit repeatedly by storms or adversities | Synonyms: storm-tossed, tempest-swept, tempest-tossed, tempest-tost |
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| buffeting | (noun) repeated heavy blows | Synonyms: pounding |
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| bufflehead | (noun) small North American diving duck; males have bushy head plumage | Synonyms: Bucephela albeola, butterball, dipper |
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| buffoon | (noun) a person who amuses others by ridiculous behavior | Synonyms: clown, goof, goofball, merry andrew |
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| (noun) a rude or vulgar fool | Synonyms: clown |
| buffoonery | (noun) acting like a clown or buffoon | Synonyms: clowning, frivolity, harlequinade, japery, prank |
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| buffoonish | (adjective) like a clown | Synonyms: clownish, clownlike, zany |
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| bufo | (noun) any toad of the genus Bufo | - |
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| bulletproof | (adjective) not penetrable by bullets | - |
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| (adjective) without flaws or loopholes | Synonyms: ironclad, unassailable, unshakable, watertight |
| (verb) make bulletproof | - |
| bullfight | (noun) a Spanish or Portuguese or Latin American spectacle; a matador baits and (usually) kills a bull in an arena before many spectators | Synonyms: corrida |
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| bullfighter | (noun) someone who fights bulls | Synonyms: toreador |
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| bullfighting | (noun) the activity at a bullfight | Synonyms: tauromachy |
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| bullfinch | (noun) common European finch mostly black and white with red throat and breast | Synonyms: Pyrrhula pyrrhula |
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| bullfrog | (noun) largest North American frog; highly aquatic with a deep-pitched voice | Synonyms: Rana catesbeiana |
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| bumf | (noun) reading materials (documents, written information) that you must read and deal with but that you think are extremely boring | Synonyms: bumph |
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| bunfight | (noun) (Briticism) a grand formal party on an important occasion | Synonyms: bun-fight |
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| burglarproof | (adjective) secure against burglary | - |
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| burrfish | (noun) any of several fishes having rigid flattened spines | - |
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| bursiform | (adjective) shaped like a pouch | Synonyms: pouch-shaped, pouchlike, saclike |
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| butterfat | (noun) the fatty substance of milk from which butter is made | - |
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| butterfingered | (adjective) lacking physical movement skills, especially with the hands | Synonyms: bumbling, bungling, ham-fisted, ham-handed, handless, heavy-handed, left-handed |
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| butterfingers | (noun) someone who drops things (especially one who cannot catch a ball) | - |
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| butterfish | (noun) small marine fish with a short compressed body and feeble spines | Synonyms: stromateid, stromateid fish |
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| (noun) slippery scaleless food fish of the northern Atlantic coastal waters | Synonyms: Pholis gunnellus, rock gunnel |
| (noun) any of numerous small flat Atlantic food fish having smooth skin | - |
| butterflower | (noun) any of various plants of the genus Ranunculus | Synonyms: butter-flower, buttercup, crowfoot, goldcup, kingcup |
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| butterfly | (noun) a swimming stroke in which the arms are thrown forward together out of the water while the feet kick up and down | Synonyms: butterfly stroke |
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| (noun) diurnal insect typically having a slender body with knobbed antennae and broad colorful wings | - |
| (verb) talk or behave amorously, without serious intentions | Synonyms: chat up, coquet, coquette, dally, flirt, mash, philander, romance |
| (verb) cut and spread open, as in preparation for cooking | - |
| (verb) flutter like a butterfly | - |
| butterflyfish | (noun) tropical fish with huge fanlike pectoral fins for underwater gliding; unrelated to searobins | Synonyms: flying gurnard, flying robin |
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| cafe | (noun) a small restaurant where drinks and snacks are sold | Synonyms: coffee bar, coffee shop, coffeehouse |
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| cafeteria | (noun) a restaurant where you serve yourself and pay a cashier | - |
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| caff | (noun) informal British term for a cafe | - |
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| caffein | (noun) a bitter alkaloid found in coffee and tea that is responsible for their stimulating effects | Synonyms: caffeine |
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| caffeine | (noun) a bitter alkaloid found in coffee and tea that is responsible for their stimulating effects | Synonyms: caffein |
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| caffeinic | (adjective) of or containing caffein | - |
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| caffeinism | (noun) poisoning resulting from excessive intake of caffeine containing products | Synonyms: caffeine intoxication |
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| caffer | (noun) an offensive and insulting term for any Black African | Synonyms: caffre, kaffir, kafir |
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| caffre | (noun) an offensive and insulting term for any Black African | Synonyms: caffer, kaffir, kafir |
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| caftan | (noun) a (cotton or silk) cloak with full sleeves and sash reaching down to the ankles; worn by men in the Levant | Synonyms: kaftan |
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| (noun) a woman's dress style that imitates the caftan cloaks worn by men in the Near East | Synonyms: kaftan |
| caitiff | (adjective) despicably mean and cowardly | - |
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| (noun) a cowardly and despicable person | - |
| calceiform | (adjective) of slipper-shaped blossoms | Synonyms: calceolate |
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| calciferol | (noun) a fat-soluble vitamin that prevents rickets | Synonyms: cholecalciferol, D, ergocalciferol, viosterol, vitamin D |
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| calciferous | (adjective) bearing or producing or containing calcium or calcium carbonate or calcite | - |
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| calcific | (adjective) involving or resulting from calcification | - |
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| calcification | (noun) a process that impregnates something with calcium (or calcium salts) | - |
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| (noun) tissue hardened by deposition of lime salts | - |
| (noun) an inflexible and unchanging state | - |
| calcifugous | (adjective) growing or living in acid soil | - |
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| calcify | (verb) turn into lime; become calcified | - |
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| (verb) convert into lime | - |
| (verb) become impregnated with calcium salts | - |
| (verb) become inflexible and unchanging | - |
| calefacient | (adjective) producing the sensation of heat when applied to the body | Synonyms: warming |
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| calefaction | (noun) the property of being warming | Synonyms: incalescence |
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| calefactive | (adjective) serving to heat | Synonyms: calefactory |
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| calefactory | (adjective) serving to heat | Synonyms: calefactive |
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| calf | (noun) young of domestic cattle | - |
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| (noun) young of various large placental mammals e.g. whale or giraffe or elephant or buffalo | - |
| (noun) the muscular back part of the shank | Synonyms: sura |
| (noun) fine leather from the skin of a calf | Synonyms: calfskin |
| calfskin | (noun) fine leather from the skin of a calf | Synonyms: calf |
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| calif | (noun) the civil and religious leader of a Muslim state considered to be a representative of Allah on earth | Synonyms: caliph, kalif, kaliph, khalif, khalifah |
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| californium | (noun) a radioactive transuranic element; discovered by bombarding curium with alpha particles | Synonyms: atomic number 98, Cf |
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| calorifacient | (adjective) producing heat; usually used of foods | - |
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| calorific | (adjective) heat-generating | - |
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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 |
| (verb) disguise by camouflaging; exploit the natural surroundings to disguise something | - |
| camouflaged | (adjective) made invisible by means of protective coloring | - |
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| campfire | (noun) a small outdoor fire for warmth or cooking (as at a camp) | - |
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| camshaft | (noun) an engine shaft with cams attached to it | - |
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| 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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| 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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| candyfloss | (noun) a candy made by spinning sugar that has been boiled to a high temperature | Synonyms: cotton candy, spun sugar |
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| candytuft | (noun) any of various flowering plants of the genus Iberis cultivated for their showy clusters of white to red or purple flowers; native to Mediterranean region | - |
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| canfield | (noun) a form of solitaire that involves gambling | - |
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| canful | (noun) the quantity contained in a can | Synonyms: can |
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| capful | (noun) the quantity that a cap will hold | - |
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| caprifig | (noun) wild variety of the common fig used to facilitate pollination of certain figs | Synonyms: Ficus carica sylvestris |
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| carafe | (noun) a bottle with a stopper; for serving wine or water | Synonyms: decanter |
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| carboniferous | (adjective) relating to or consisting of or yielding carbon | Synonyms: carbonaceous, carbonic, carbonous |
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| (adjective) of or relating to the Carboniferous geologic era | - |
| cardinalfish | (noun) small red fishes of coral reefs and inshore tropical waters | - |
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| carefree | (adjective) cheerfully irresponsible | Synonyms: devil-may-care, freewheeling, happy-go-lucky, harum-scarum, slaphappy |
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| (adjective) free of trouble and worry and care | Synonyms: unworried |
| carefreeness | (noun) the trait of being without worry or responsibility | - |
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| (noun) the cheerful feeling you have when nothing is troubling you | Synonyms: insouciance, lightheartedness, lightsomeness |
| careful | (adjective) exercising caution or showing care or attention | - |
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| (adjective) cautiously attentive | Synonyms: heedful |
| (adjective) mindful of the future in spending money | Synonyms: thrifty |
| (adjective) full of cares or anxiety | - |
| (adjective) unhurried and with care and dignity | Synonyms: deliberate, measured |
| carefully | (adverb) taking care or paying attention | - |
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| (adverb) as if with kid gloves; with caution or prudence or tact | Synonyms: cautiously, with kid gloves |
| carefulness | (noun) the quality of being careful and painstaking | - |
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| (noun) the trait of being cautious; being attentive to possible danger | Synonyms: caution, cautiousness |
| carfare | (noun) the fare charged for riding a bus or streetcar | Synonyms: bus fare |
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| carful | (noun) the quantity that a car will hold | - |
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| carnify | (verb) become muscular or fleshy | - |
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| carrefour | (noun) a junction where one street or road crosses another | Synonyms: crossing, crossroad, crossway, intersection |
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| cartilaginification | (noun) abnormal formation of cartilage from other tissues; observed in some Asians | - |
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