| abracadabra | (noun) gibberish and nonsense | - |
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| abrachia | (noun) the condition of having no arms | - |
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| abstract | (noun) a concept or idea not associated with any specific instance | Synonyms: abstraction |
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| (noun) a sketchy summary of the main points of an argument or theory | Synonyms: outline, precis, synopsis |
| abstractedness | (noun) preoccupation with something to the exclusion of all else | Synonyms: abstraction |
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| abstracter | (noun) one who makes abstracts or summarizes information | Synonyms: abstractor |
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| abstraction | (noun) a general concept formed by extracting common features from specific examples | Synonyms: abstract entity |
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| (noun) the act of withdrawing or removing something | - |
| (noun) an abstract painting | - |
| (noun) a concept or idea not associated with any specific instance | Synonyms: abstract |
| (noun) preoccupation with something to the exclusion of all else | Synonyms: abstractedness |
| (noun) the process of formulating general concepts by abstracting common properties of instances | Synonyms: generalisation, generalization |
| abstractionism | (noun) an abstract genre of art; artistic content depends on internal form rather than pictorial representation | Synonyms: abstract art |
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| (noun) a representation having no reference to concrete objects or specific examples | Synonyms: unrealism |
| abstractionist | (noun) a painter of abstract pictures | Synonyms: abstract artist |
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| abstractness | (noun) the quality of being considered apart from a specific instance or object | - |
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| abstractor | (noun) one who makes abstracts or summarizes information | Synonyms: abstracter |
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| acaracide | (noun) a chemical agent used to kill mites | Synonyms: acaricide |
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| accuracy | (noun) the quality of being near to the true value | Synonyms: truth |
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| (noun) (mathematics) the number of significant figures given in a number | - |
| adhocracy | (noun) an organization with little or no structure | - |
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| amphibrach | (noun) a metrical unit with unstressed-stressed-unstressed syllables (e.g., `remember') | - |
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| anthracite | (noun) a hard natural coal that burns slowly and gives intense heat | Synonyms: anthracite coal, hard coal |
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| anthracosis | (noun) lung disease caused by inhaling coal dust | Synonyms: black lung, black lung disease, coal miner's lung |
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| arachnid | (noun) air-breathing arthropods characterized by simple eyes and four pairs of legs | Synonyms: arachnoid |
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| arachnoid | (noun) air-breathing arthropods characterized by simple eyes and four pairs of legs | Synonyms: arachnid |
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| (noun) the middle of the 3 meninges | Synonyms: arachnoid membrane |
| arachnophobia | (noun) a morbid fear of spiders | - |
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| aristocracy | (noun) a privileged class holding hereditary titles | Synonyms: nobility |
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| (noun) the most powerful members of a society | Synonyms: gentry |
| arrack | (noun) any of various strong liquors distilled from the fermented sap of toddy palms or from fermented molasses | Synonyms: arak |
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| ataractic | (noun) a drug used to reduce stress or tension without reducing mental clarity | Synonyms: antianxiety agent, ataractic agent, ataractic drug, tranquilizer, tranquilliser, tranquillizer |
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| attracter | (noun) a characteristic that provides pleasure and attracts | Synonyms: attraction, attractive feature, attractor, magnet |
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| (noun) (physics) a point in the ideal multidimensional phase space that is used to describe a system toward which the system tends to evolve regardless of the starting conditions of the system | Synonyms: attractor |
| (noun) an entertainer who attracts large audiences | Synonyms: attraction, attractor, draw, drawing card |
| attraction | (noun) the quality of arousing interest; being attractive or something that attracts | Synonyms: attractiveness |
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| (noun) a characteristic that provides pleasure and attracts | Synonyms: attracter, attractive feature, attractor, magnet |
| (noun) an entertainment that is offered to the public | - |
| (noun) an entertainer who attracts large audiences | Synonyms: attracter, attractor, draw, drawing card |
| (noun) the force by which one object attracts another | Synonyms: attractive force |
| attractiveness | (noun) sexual allure | - |
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| (noun) the quality of arousing interest; being attractive or something that attracts | Synonyms: attraction |
| attractor | (noun) a characteristic that provides pleasure and attracts | Synonyms: attracter, attraction, attractive feature, magnet |
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| (noun) (physics) a point in the ideal multidimensional phase space that is used to describe a system toward which the system tends to evolve regardless of the starting conditions of the system | Synonyms: attracter |
| (noun) an entertainer who attracts large audiences | Synonyms: attracter, attraction, draw, drawing card |
| autocracy | (noun) a political theory favoring unlimited authority by a single individual | - |
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| (noun) a political system governed by a single individual | Synonyms: autarchy |
| azadirachtin | (noun) insecticide | - |
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| azedarach | (noun) tree of northern India and China having purple blossoms and small inedible yellow fruits; naturalized in the southern United States as a shade tree | Synonyms: azederach, China tree, chinaberry, chinaberry tree, Melia azedarach, Melia azederach, Persian lilac, pride-of-India |
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| azederach | (noun) tree of northern India and China having purple blossoms and small inedible yellow fruits; naturalized in the southern United States as a shade tree | Synonyms: azedarach, China tree, chinaberry, chinaberry tree, Melia azedarach, Melia azederach, Persian lilac, pride-of-India |
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| bacitracin | (noun) a polypeptide antibiotic of known chemical structure effective against several types of Gram-positive organisms; usually applied locally | - |
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| barmbrack | (noun) a rich currant cake or bun | - |
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| barrack | (noun) a building or group of buildings used to house military personnel | - |
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| barracking | (noun) shouting to interrupt a speech with which you disagree | Synonyms: heckling |
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| barracouta | (noun) a large marine food fish common on the coasts of Australia, New Zealand, and southern Africa | Synonyms: snoek |
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| barracuda | (noun) any voracious marine fish of the genus Sphyraena having an elongated cylindrical body and large mouth with projecting lower jaw and long strong teeth | - |
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| batrachian | (noun) any of various tailless stout-bodied amphibians with long hind limbs for leaping; semiaquatic and terrestrial species | Synonyms: anuran, frog, salientian, toad, toad frog |
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| batrachomyomachia | (noun) a silly altercation | - |
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| biopiracy | (noun) biological theft; illegal collection of indigenous plants by corporations who patent them for their own use | - |
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| bladderwrack | (noun) a common rockweed used in preparing kelp and as manure | Synonyms: black rockweed, bladder fucus, Fucus vesiculosus, tang |
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| (noun) similar to and found with black rockweed | Synonyms: Ascophyllum nodosum |
| brace | (noun) a structural member used to stiffen a framework | Synonyms: bracing |
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| (noun) a carpenter's tool having a crank handle for turning and a socket to hold a bit for boring | Synonyms: bitstock |
| (noun) an appliance that corrects dental irregularities | Synonyms: braces, orthodontic braces |
| (noun) a support that steadies or strengthens something else | - |
| (noun) elastic straps that hold trousers up | Synonyms: gallus, suspender |
| (noun) a rope on a square-rigged ship that is used to swing a yard about and secure it | - |
| (noun) either of two punctuation marks ({ or }) used to enclose textual material | - |
| (noun) a set of two similar things considered as a unit | Synonyms: pair |
| (noun) two items of the same kind | Synonyms: couple, couplet, distich, duad, duet, duo, dyad, pair, span, twain, twosome, yoke |
| bracelet | (noun) jewelry worn around the wrist for decoration | Synonyms: bangle |
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| (noun) a band of cloth or leather or metal links attached to a wristwatch and wrapped around the wrist | Synonyms: watch bracelet, watchband, watchstrap, wristband |
| bracer | (noun) a tonic or restorative (especially a drink of liquor) | Synonyms: pick-me-up |
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| (noun) a protective covering for the wrist or arm that is used in archery and fencing and other sports | Synonyms: armguard |
| bracero | (noun) a Mexican laborer who worked in the United States on farms and railroads in order to ease labor shortages during World War II | - |
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| braces | (noun) an appliance that corrects dental irregularities | Synonyms: brace, orthodontic braces |
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| brachiation | (noun) swinging by the arms from branch to branch | - |
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| brachiopod | (noun) marine animal with bivalve shell having a pair of arms bearing tentacles for capturing food; found worldwide | Synonyms: lamp shell, lampshell |
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| brachistochrone | (noun) a curve between two points along which a body can move under gravity in a shorter time than for any other curve. | - |
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| brachium | (noun) (biology) a branching or armlike part of an animal | - |
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| brachycephalic | (noun) an adult with a short broad head | - |
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| brachycephalism | (noun) the quality of being brachycephalic | Synonyms: brachycephaly |
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| brachycephaly | (noun) the quality of being brachycephalic | Synonyms: brachycephalism |
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| brachydactylia | (noun) abnormal shortness of fingers and toes | Synonyms: brachydactyly |
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| brachydactyly | (noun) abnormal shortness of fingers and toes | Synonyms: brachydactylia |
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| brachyuran | (noun) typical crabs | - |
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| bracing | (noun) a structural member used to stiffen a framework | Synonyms: brace |
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| bracken | (noun) large coarse fern often several feet high; essentially weed ferns; cosmopolitan | Synonyms: brake, pasture brake, Pteridium aquilinum |
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| (noun) fern of southeastern Asia; not hardy in cold temperate regions | Synonyms: Pteridium esculentum |
| bracket | (noun) a support projecting from a wall (as to hold a shelf) | Synonyms: wall bracket |
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| (noun) either of two punctuation marks ([ or ]) used to enclose textual material | Synonyms: square bracket |
| (noun) either of two punctuation marks (`<' or `>') used in computer programming and sometimes used to enclose textual material | Synonyms: angle bracket |
| (noun) a category falling within certain defined limits | - |
| brackishness | (noun) the quality of being salty, as the saltiness of water | - |
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| bract | (noun) a modified leaf or leaflike part just below and protecting an inflorescence | - |
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| bracteole | (noun) a small bract | Synonyms: bractlet |
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| bractlet | (noun) a small bract | Synonyms: bracteole |
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| bureaucracy | (noun) nonelective government officials | Synonyms: bureaucratism |
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| (noun) a government that is administered primarily by bureaus that are staffed with nonelective officials | - |
| (noun) any organization in which action is obstructed by insistence on unnecessary procedures and red tape | - |
| caracal | (noun) of deserts of northern Africa and southern Asia | Synonyms: desert lynx, Lynx caracal |
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| caracara | (noun) any of various long-legged carrion-eating hawks of South America and Central America | - |
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| carack | (noun) a large galleon sailed in the Mediterranean as a merchantman | Synonyms: carrack |
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| caracolito | (noun) large Costa Rican tree having light-colored wood suitable for cabinetry; similar to the African lepidobotrys in wood structure as well as in fruit and flowers and leaves and seeds; often classified in other families | Synonyms: Ruptiliocarpon caracolito |
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| caracul | (noun) hardy coarse-haired sheep of central Asia; lambs are valued for their soft curly black fur | Synonyms: broadtail, karakul |
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| carrack | (noun) a large galleon sailed in the Mediterranean as a merchantman | Synonyms: carack |
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| cataphract | (noun) armor that protects the wearer's whole body | Synonyms: body armor, body armour, coat of mail, suit of armor, suit of armour |
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| cataract | (noun) a large waterfall; violent rush of water over a precipice | - |
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| (noun) an eye disease that involves the clouding or opacification of the natural lens of the eye | - |
| characid | (noun) any freshwater fish of the family Characinidae | Synonyms: characin, characin fish |
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| characin | (noun) any freshwater fish of the family Characinidae | Synonyms: characid, characin fish |
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| character | (noun) (genetics) an attribute (structural or functional) that is determined by a gene or group of genes | - |
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| (noun) the inherent complex of attributes that determines a persons moral and ethical actions and reactions | Synonyms: fiber, fibre |
| (noun) a characteristic property that defines the apparent individual nature of something | Synonyms: lineament, quality |
| (noun) an actor's portrayal of someone in a play | Synonyms: part, persona, role, theatrical role |
| (noun) a written symbol that is used to represent speech | Synonyms: graph, grapheme, graphic symbol |
| (noun) a formal recommendation by a former employer to a potential future employer describing the person's qualifications and dependability | Synonyms: character reference, reference |
| (noun) a person of a specified kind (usually with many eccentricities) | Synonyms: case, eccentric, type |
| (noun) an imaginary person represented in a work of fiction (play or film or story) | Synonyms: fictional character, fictitious character |
| (noun) good repute | - |
| characterisation | (noun) a graphic or vivid verbal description | Synonyms: characterization, delineation, depiction, picture, word-painting, word picture |
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| (noun) the act of describing distinctive characteristics or essential features | Synonyms: characterization |
| characteristic | (noun) a distinguishing quality; a feature that can be used to identify something | - |
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| (noun) any measurable property of a device measured under closely specified conditions | Synonyms: device characteristic |
| (noun) a prominent attribute or aspect of something | Synonyms: feature |
| (noun) the integer part (positive or negative) of the representation of a logarithm; in the expression log 643 = 2.808 the characteristic is 2 | - |
| characteristicness | (noun) The quality or state of being a distinguishing feature of a person or thing. | - |
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| characterization | (noun) acting the part of a character on stage; dramatically representing the character by speech and action and gesture | Synonyms: enactment, personation, portrayal |
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| (noun) a graphic or vivid verbal description | Synonyms: characterisation, delineation, depiction, picture, word-painting, word picture |
| (noun) the act of describing distinctive characteristics or essential features | Synonyms: characterisation |
| chemoattractant | (noun) a substance inducing positive chemotaxis in motile cells. | - |
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| chiropractic | (noun) a method of treatment that manipulates body structures (especially the spine) to relieve low back pain or even headache or high blood pressure | - |
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| chiropractor | (noun) a therapist who practices chiropractic | - |
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| chlortetracycline | (noun) a yellow crystalline antibiotic (trade name Aureomycin) used to treat certain bacterial and rickettsial diseases | Synonyms: Aureomycin |
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| coatrack | (noun) a rack with hooks for temporarily holding coats and hats | Synonyms: coat rack, hatrack |
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| confederacy | (noun) a secret agreement between two or more people to perform an unlawful act | Synonyms: conspiracy |
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| (noun) a union of political organizations | Synonyms: confederation, federation |
| (noun) a group of conspirators banded together to achieve some harmful or illegal purpose | Synonyms: conspiracy |
| conspiracy | (noun) a plot to carry out some harmful or illegal act (especially a political plot) | Synonyms: cabal |
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| (noun) a secret agreement between two or more people to perform an unlawful act | Synonyms: confederacy |
| (noun) a group of conspirators banded together to achieve some harmful or illegal purpose | Synonyms: confederacy |
| contraception | (noun) birth control by the use of devices (diaphragm or intrauterine device or condom) or drugs or surgery | Synonyms: contraceptive method |
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| contraceptive | (noun) an agent or device intended to prevent conception | Synonyms: birth control device, contraceptive device, preventative, preventive, prophylactic device |
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| contract | (noun) a variety of bridge in which the bidder receives points toward game only for the number of tricks he bid | Synonyms: contract bridge |
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| (noun) a binding agreement between two or more persons that is enforceable by law | - |
| (noun) (contract bridge) the highest bid becomes the contract setting the number of tricks that the bidder must make | Synonyms: declaration |
| contractility | (noun) the capability or quality of shrinking or contracting, especially by muscle fibers and even some other forms of living matter | - |
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| contracting | (noun) becoming infected | Synonyms: catching |
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| contraction | (noun) the act of decreasing (something) in size or volume or quantity or scope | - |
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| (noun) (physiology) a shortening or tensing of a part or organ (especially of a muscle or muscle fiber) | Synonyms: muscle contraction, muscular contraction |
| (noun) a word formed from two or more words by omitting or combining some sounds | - |
| (noun) the process or result of becoming smaller or pressed together | Synonyms: compression, condensation |
| contractor | (noun) a bodily organ that contracts | Synonyms: contractile organ |
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| (noun) someone (a person or firm) who contracts to build things | - |
| (noun) (law) a party to a contract | - |
| (noun) the bridge player in contract bridge who wins the bidding and can declare which suit is to be trumps | Synonyms: declarer |
| contracture | (noun) an abnormal and usually permanent contraction of a muscle | - |
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| coracan | (noun) East Indian cereal grass whose seed yield a somewhat bitter flour, a staple in the Orient | Synonyms: African millet, corakan, Eleusine coracana, finger millet, kurakkan, ragee, ragi |
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| coracle | (noun) a small rounded boat made of hides stretched over a wicker frame; still used in some parts of Great Britain | - |
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| counteraction | (noun) action intended to nullify the effects of some previous action | Synonyms: neutralisation, neutralization |
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| counterattraction | (noun) a rival attraction | - |
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| crack | (noun) the act of cracking something | Synonyms: cracking, fracture |
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| (noun) a usually brief attempt | Synonyms: fling, go, offer, pass, whirl |
| (noun) a narrow opening | Synonyms: gap |
| (noun) a purified and potent form of cocaine that is smoked rather than snorted; highly addictive | Synonyms: crack cocaine, tornado |
| (noun) a blemish resulting from a break without complete separation of the parts | - |
| (noun) witty remark | Synonyms: quip, sally, wisecrack |
| (noun) a sudden sharp noise | Synonyms: cracking, snap |
| (noun) a long narrow cleft | Synonyms: cleft, crevice, fissure, scissure |
| (noun) a long narrow depression in a surface | Synonyms: chap, cranny, crevice, fissure |
| (noun) a chance to do something | Synonyms: shot |
| crackdown | (noun) severely repressive actions | - |
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| cracker | (noun) a party favor consisting of a paper roll (usually containing candy or a small favor) that pops when pulled at both ends | Synonyms: cracker bonbon, snapper |
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| (noun) firework consisting of a small explosive charge and fuse in a heavy paper casing | Synonyms: banger, firecracker |
| (noun) a thin crisp wafer made of flour and water with or without leavening and shortening; unsweetened or semisweet | - |
| (noun) a poor White person in the southern United States | Synonyms: redneck |
| (noun) a programmer who cracks (gains unauthorized access to) computers, typically to do malicious things | - |