| 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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| acervate | (adjective) pertaining to a growth of fungi that forms a heaped-up mass | - |
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| achievability | (noun) the state of being achievable | Synonyms: attainability, attainableness |
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| achievable | (adjective) capable of existing or taking place or proving true; possible to do | Synonyms: accomplishable, doable, manageable, realizable |
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| activate | (verb) make active or more active | - |
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| (verb) make (substances) radioactive | - |
| (verb) aerate (sewage) so as to favor the growth of organisms that decompose organic matter | Synonyms: aerate |
| (verb) make more adsorptive | - |
| (verb) put in motion or move to act | Synonyms: actuate, set off, spark, spark off, touch off, trigger, trigger off, trip |
| activated | (adjective) rendered active; e.g. rendered radioactive or luminescent or photosensitive or conductive | - |
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| (adjective) (military) set up and placed on active assignment | - |
| (adjective) (of e.g. a molecule) made reactive or more reactive | Synonyms: excited |
| (adjective) (of sewage) treated with aeration and bacteria to aid decomposition | - |
| activating | (adjective) causing motion or action or change | Synonyms: actuating |
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| (noun) the activity of causing to have energy and be active | Synonyms: activation, energizing |
| activation | (noun) the activity of causing to have energy and be active | Synonyms: activating, energizing |
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| (noun) making active and effective (as a bomb) | - |
| (noun) stimulation of activity in an organism or chemical | - |
| activator | (noun) (biology) any agency bringing about activation; a molecule that increases the activity of an enzyme or a protein that increases the production of a gene product in DNA transcription | - |
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| adjectival | (adjective) of or relating to or functioning as an adjective | Synonyms: adjective |
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| adjectivally | (adverb) as an adjective; in an adjectival manner | - |
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| adjuvant | (adjective) enhancing the action of a medical treatment | - |
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| (adjective) furnishing added support | Synonyms: accessory, adjunct, ancillary, appurtenant, auxiliary |
| (noun) an additive that enhances the effectiveness of medical treatment | - |
| advance | (adjective) being ahead of time or need | Synonyms: beforehand |
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| (adjective) situated ahead or going before | Synonyms: advanced, in advance |
| (noun) the act of moving forward (as toward a goal) | Synonyms: advancement, forward motion, onward motion, procession, progress, progression |
| (noun) increase in price or value | Synonyms: rise |
| (noun) a tentative suggestion designed to elicit the reactions of others | Synonyms: approach, feeler, overture |
| (noun) a movement forward | Synonyms: progress, progression |
| (noun) a change for the better; progress in development | Synonyms: betterment, improvement |
| (noun) an amount paid before it is earned | Synonyms: cash advance |
| (verb) develop in a positive way | Synonyms: come along, come on, get along, get on, progress, shape up |
| (verb) rise in rate or price | Synonyms: gain |
| (verb) increase or raise | Synonyms: boost, supercharge |
| (verb) develop further | - |
| (verb) bring forward for consideration or acceptance | Synonyms: throw out |
| (verb) obtain advantages, such as points, etc. | Synonyms: gain, gain ground, get ahead, make headway, pull ahead, win |
| (verb) move forward, also in the metaphorical sense | Synonyms: go on, march on, move on, pass on, progress |
| (verb) cause to move forward | Synonyms: bring forward |
| (verb) move forward | Synonyms: set ahead |
| (verb) pay in advance | - |
| (verb) give a promotion to or assign to a higher position | Synonyms: elevate, kick upstairs, promote, raise, upgrade |
| (verb) contribute to the progress or growth of | Synonyms: boost, encourage, further, promote |
| advanced | (adjective) (of societies) highly developed especially in technology or industry | - |
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| (adjective) situated ahead or going before | Synonyms: advance, in advance |
| (adjective) ahead in development; complex or intricate | Synonyms: sophisticated |
| (adjective) far along in time | Synonyms: ripe |
| (adjective) comparatively late in a course of development | - |
| (adjective) farther along in physical or mental development | - |
| (adjective) ahead of the times | Synonyms: forward-looking, innovative, modern |
| (adjective) at a higher level in training or knowledge or skill | - |
| advancement | (noun) the act of moving forward (as toward a goal) | Synonyms: advance, forward motion, onward motion, procession, progress, progression |
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| (noun) gradual improvement or growth or development | Synonyms: progress |
| (noun) encouragement of the progress or growth or acceptance of something | Synonyms: furtherance, promotion |
| advancer | (noun) someone who advances | - |
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| advancing | (adjective) moving forward | Synonyms: forward-moving, forward |
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| advantage | (noun) the quality of having a superior or more favorable position | Synonyms: vantage |
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| (noun) benefit resulting from some event or action | Synonyms: reward |
| (noun) (tennis) first point scored after deuce | - |
| (verb) give an advantage to | - |
| advantageous | (adjective) giving an advantage | Synonyms: favorable, favourable |
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| (adjective) appropriate for achieving a particular end; implies a lack of concern for fairness | - |
| advantageously | (adverb) in a manner affording benefit or advantage | Synonyms: well |
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| advantageousness | (noun) the quality of being encouraging or promising of a successful outcome | Synonyms: favorableness, favourableness, positiveness, positivity, profitableness |
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| aestival | (adjective) (rare) of or occurring in summer | Synonyms: estival |
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| aestivate | (verb) sleep during summer | Synonyms: estivate |
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| aestivation | (noun) (botany) the arrangement of sepals and petals in a flower bud before it opens | Synonyms: estivation |
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| (noun) (zoology) cessation or slowing of activity during the summer; especially slowing of metabolism in some animals during a hot or dry period | Synonyms: estivation |
| aggravate | (verb) make worse | Synonyms: exacerbate, exasperate, worsen |
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| (verb) exasperate or irritate | Synonyms: exacerbate, exasperate |
| aggravated | (adjective) incited, especially deliberately, to anger | Synonyms: provoked |
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| (adjective) made more severe or intense especially in law | - |
| aggravating | (adjective) making worse | Synonyms: exacerbating, exasperating |
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| aggravatingly | (adverb) in an aggravating fashion | - |
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| aggravation | (noun) unfriendly behavior that causes anger or resentment | Synonyms: irritation, provocation |
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| (noun) action that makes a problem or a disease (or its symptoms) worse | Synonyms: exacerbation |
| (noun) an exasperated feeling of annoyance | Synonyms: exasperation |
| aggravator | (noun) an unpleasant person who is annoying or exasperating | Synonyms: annoyance |
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| akvavit | (noun) Scandinavian liquor usually flavored with caraway seeds | Synonyms: aquavit |
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| amadavat | (noun) red Asian weaverbirds often kept as cage birds | Synonyms: avadavat |
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| ambivalence | (noun) mixed feelings or emotions | Synonyms: ambivalency |
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| ambivalency | (noun) mixed feelings or emotions | Synonyms: ambivalence |
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| ambivalent | (adjective) uncertain or unable to decide about what course to follow | - |
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| approval | (noun) the formal act of approving | Synonyms: approving, blessing |
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| (noun) a message expressing a favorable opinion | Synonyms: commendation |
| (noun) a feeling of liking something or someone good | - |
| (noun) acceptance as satisfactory | Synonyms: favorable reception, favourable reception |
| archival | (adjective) of or relating to or contained in or serving as an archive | - |
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| arrival | (noun) accomplishment of an objective | Synonyms: reaching |
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| (noun) the act of arriving at a certain place | - |
| (noun) someone who arrives (or has arrived) | Synonyms: arriver, comer |
| atorvastatin | (noun) an oral drug (trade name Lipitor) that is effective in lowering triglycerides; potent in reducing LDL cholesterol because higher doses can be given | Synonyms: Lipitor |
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| avadavat | (noun) red Asian weaverbirds often kept as cage birds | Synonyms: amadavat |
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| avail | (noun) a means of serving | Synonyms: help, service |
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| (verb) take advantage of | - |
| (verb) take or use | Synonyms: help |
| (verb) be of use to, be useful to | - |
| availability | (noun) the quality of being at hand when needed | Synonyms: accessibility, availableness, handiness |
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| available | (adjective) obtainable or accessible and ready for use or service | - |
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| (adjective) convenient for use or disposal | Synonyms: usable, useable |
| (adjective) not busy; not otherwise committed | Synonyms: uncommitted |
| availableness | (noun) the quality of being at hand when needed | Synonyms: accessibility, availability, handiness |
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| avalanche | (noun) a slide of large masses of snow and ice and mud down a mountain | - |
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| (noun) a sudden appearance of an overwhelming number of things | - |
| (verb) gather into a huge mass and roll down a mountain, of snow | Synonyms: roll down |
| avaram | (noun) evergreen Indian shrub with vivid yellow flowers whose bark is used in tanning; sometimes placed in genus Cassia | Synonyms: Cassia auriculata, Senna auriculata, tanner's cassia |
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| avarice | (noun) reprehensible acquisitiveness; insatiable desire for wealth (personified as one of the deadly sins) | Synonyms: avaritia, covetousness, greed, rapacity |
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| (noun) extreme greed for material wealth | Synonyms: avariciousness, covetousness, cupidity |
| avaricious | (adjective) immoderately desirous of acquiring e.g. wealth | Synonyms: covetous, grabby, grasping, greedy, prehensile |
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| avariciously | (adverb) in a greedy manner | Synonyms: covetously, greedily |
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| avariciousness | (noun) extreme greed for material wealth | Synonyms: avarice, covetousness, cupidity |
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| avaritia | (noun) reprehensible acquisitiveness; insatiable desire for wealth (personified as one of the deadly sins) | Synonyms: avarice, covetousness, greed, rapacity |
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| avascular | (adjective) without blood vessels | - |
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| avatar | (noun) the manifestation of a Hindu deity (especially Vishnu) in human or superhuman or animal form | - |
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| (noun) a new personification of a familiar idea | Synonyms: embodiment, incarnation |
| baklava | (noun) rich Middle Eastern cake made of thin layers of flaky pastry filled with nuts and honey | - |
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| balaclava | (noun) a cap that is close-fitting and woolen and covers all of the head but the face | Synonyms: balaclava helmet |
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| believability | (noun) the quality of being believable or trustworthy | Synonyms: credibility, credibleness |
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| believable | (adjective) capable of being believed | Synonyms: credible |
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| believably | (adverb) in a believable manner | - |
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| (adverb) easy to believe on the basis of available evidence | Synonyms: credibly, plausibly, probably |
| bevatron | (noun) a cyclotron that accelerates protons up to several billion electron volts | - |
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| bivalent | (adjective) used of homologous chromosomes associated in pairs in synapsis | Synonyms: double |
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| (adjective) having a valence of two or having two valences | Synonyms: divalent |
| bivalve | (adjective) used of mollusks having two shells (as clams etc.) | Synonyms: bivalved |
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| (noun) marine or freshwater mollusks having a soft body with platelike gills enclosed within two shells hinged together | Synonyms: lamellibranch, pelecypod |
| bivalved | (adjective) used of mollusks having two shells (as clams etc.) | Synonyms: bivalve |
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| bivariate | (adjective) having two variables | - |
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| bolivar | (noun) the basic unit of money in Venezuela; equal to 100 centimos | - |
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| 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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| bravado | (noun) a swaggering show of courage | Synonyms: bluster |
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| calvaria | (noun) the dome of the skull | Synonyms: skullcap |
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| calvary | (noun) any experience that causes intense suffering | Synonyms: martyrdom |
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| canavanine | (noun) an amino acid found in the jack bean | - |
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| canvas | (noun) a heavy, closely woven fabric | Synonyms: canvass |
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| (noun) the mat that forms the floor of the ring in which boxers or professional wrestlers compete | Synonyms: canvass |
| (noun) a tent made of canvas fabric | Synonyms: canvas tent, canvass |
| (noun) a large piece of fabric (usually canvas fabric) by means of which wind is used to propel a sailing vessel | Synonyms: canvass, sail, sheet |
| (noun) an oil painting on canvas fabric | Synonyms: canvass |
| (noun) the setting for a narrative or fictional or dramatic account | Synonyms: canvass |
| (verb) cover with canvas | - |
| canvasback | (noun) North American wild duck valued for sport and food | Synonyms: Aythya valisineria, canvasback duck |
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| canvass | (noun) a heavy, closely woven fabric | Synonyms: canvas |
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| (noun) the mat that forms the floor of the ring in which boxers or professional wrestlers compete | Synonyms: canvas |
| (noun) a tent made of canvas fabric | Synonyms: canvas, canvas tent |
| (noun) a large piece of fabric (usually canvas fabric) by means of which wind is used to propel a sailing vessel | Synonyms: canvas, sail, sheet |
| (noun) an oil painting on canvas fabric | Synonyms: canvas |
| (noun) an inquiry into public opinion conducted by interviewing a random sample of people | Synonyms: opinion poll, poll, public opinion poll |
| (noun) the setting for a narrative or fictional or dramatic account | Synonyms: canvas |
| (verb) consider in detail and subject to an analysis in order to discover essential features or meaning | Synonyms: analyse, analyze, examine, study |
| (verb) solicit votes from potential voters in an electoral campaign | - |
| (verb) get the opinions (of people) by asking specific questions | Synonyms: poll |
| canvasser | (noun) someone who conducts surveys of public opinion | Synonyms: headcounter, poll taker, pollster |
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| (noun) someone who examines votes at an election | Synonyms: scrutineer |
| (noun) a petitioner who solicits contributions or trade or votes | Synonyms: solicitor |
| (noun) a person who takes or counts votes | - |
| canvassing | (noun) persuasion of voters in a political campaign | Synonyms: bell ringing, electioneering |
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| captivate | (verb) attract; cause to be enamored | Synonyms: becharm, beguile, bewitch, capture, catch, charm, enamor, enamour, enchant, entrance, fascinate, trance |
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| captivated | (adjective) filled with wonder and delight | Synonyms: beguiled, charmed, delighted, enthralled, entranced |
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| (adjective) strongly attracted | Synonyms: charmed |
| captivating | (adjective) capturing interest as if by a spell | Synonyms: bewitching, enchanting, enthralling, entrancing, fascinating |
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| captivatingly | (adverb) in a bewitching manner | Synonyms: bewitchingly, enchantingly, enthrallingly |
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| captivation | (noun) a feeling of great liking for something wonderful and unusual | Synonyms: enchantment, enthrallment, fascination |
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| (noun) the state of being intensely interested (as by awe or terror) | Synonyms: fascination |
| caravan | (noun) a camper equipped with living quarters | Synonyms: van |
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| (noun) a procession (of wagons or mules or camels) traveling together in single file | Synonyms: train, wagon train |
| (verb) travel in a caravan | - |
| caravanning | (noun) the practice of taking holidays in a caravan | - |
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| caravansary | (noun) an inn in some eastern countries with a large courtyard that provides accommodation for caravans | Synonyms: caravan inn, caravanserai, khan |
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| caravanserai | (noun) an inn in some eastern countries with a large courtyard that provides accommodation for caravans | Synonyms: caravan inn, caravansary, khan |
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| cardiovascular | (adjective) of or pertaining to or involving the heart and blood vessels | - |
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| carnival | (noun) a festival marked by merrymaking and processions | - |
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| (noun) a traveling show; having sideshows and rides and games of skill etc. | Synonyms: fair, funfair |
| (noun) a frenetic disorganized (and often comic) disturbance suggestive of a large public entertainment | Synonyms: circus |
| casava | (noun) any of several plants of the genus Manihot having fleshy roots yielding a nutritious starch | Synonyms: cassava |
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| cassava | (noun) any of several plants of the genus Manihot having fleshy roots yielding a nutritious starch | Synonyms: casava |
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| (noun) cassava root eaten as a staple food after drying and leaching; source of tapioca | Synonyms: manioc |
| (noun) a starch made by leaching and drying the root of the cassava plant; the source of tapioca; a staple food in the tropics | Synonyms: cassava starch, manioc, manioca |
| cavalcade | (noun) a procession of people traveling on horseback | - |
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| cavalier | (adjective) given to haughty disregard of others | Synonyms: high-handed |
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| (noun) a gallant or courtly gentleman | Synonyms: chevalier |
| cavalierly | (adverb) in a proud and domineering manner | Synonyms: disdainfully |
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| cavalla | (noun) large mackerel with long pointed snout; important food and game fish of the eastern Atlantic coast southward to Brazil | Synonyms: cero, king mackerel, Scomberomorus cavalla |
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| cavalry | (noun) a highly mobile army unit | - |
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| (noun) troops trained to fight on horseback | Synonyms: horse, horse cavalry |
| cavalryman | (noun) a soldier mounted on horseback | Synonyms: trooper |
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| (noun) a soldier in a motorized army unit | Synonyms: trooper |
| cerebrovascular | (adjective) of or relating to the brain and the blood vessels that supply it | - |
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| cerivastatin | (noun) an oral drug (trade name Baycol) to reduce blood cholesterol levels | Synonyms: Baycol |
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| charivari | (noun) a noisy mock serenade (made by banging pans and kettles) to a newly married couple | Synonyms: belling, callathump, callithump, chivaree, shivaree |
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| chevalier | (noun) a gallant or courtly gentleman | Synonyms: cavalier |
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| chivalric | (adjective) characteristic of the time of chivalry and knighthood in the Middle Ages | Synonyms: knightly, mediaeval, medieval |
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| chivalrous | (adjective) being attentive to women like an ideal knight | Synonyms: gallant, knightly |
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