| checkpoint | (noun) a place (as at a frontier) where travellers are stopped for inspection and clearance | - |
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| chemist | (noun) a scientist who specializes in chemistry | - |
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| (noun) a health professional trained in the art of preparing and dispensing drugs | Synonyms: apothecary, druggist, pharmacist, pill pusher, pill roller |
| chemoattractant | (noun) a substance inducing positive chemotaxis in motile cells. | - |
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| cheroot | (noun) a cigar with both ends cut flat | - |
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| chert | (noun) variety of silica containing microcrystalline quartz | - |
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| chest | (noun) box with a lid; used for storage; usually large and sturdy | - |
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| (noun) furniture with drawers for keeping clothes | Synonyms: bureau, chest of drawers, dresser |
| (noun) the part of the human torso between the neck and the diaphragm or the corresponding part in other vertebrates | Synonyms: pectus, thorax |
| (noun) the front of the trunk from the neck to the abdomen | Synonyms: breast |
| chestnut | (noun) a dark golden-brown or reddish-brown horse | - |
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| (noun) a small horny callus on the inner surface of a horse's leg | - |
| (noun) the brown color of chestnuts | - |
| (noun) edible nut of any of various chestnut trees of the genus Castanea | - |
| (noun) any of several attractive deciduous trees yellow-brown in autumn; yield a hard wood and edible nuts in a prickly bur | Synonyms: chestnut tree |
| (noun) wood of any of various chestnut trees of the genus Castanea | - |
| chickenshit | (noun) a false statement that is considered to indicate timidity or fear | - |
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| chicot | (noun) handsome tree of central and eastern North America having large bipinnate leaves and green-white flowers followed by large woody brown pods whose seeds are used as a coffee substitute | Synonyms: bonduc, Gymnocladus dioica, Kentucky coffee tree |
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| chiliast | (noun) a person who believes in the coming of the millennium (a time of great peace and prosperity) | Synonyms: millenarian, millenarist |
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| chimneypot | (noun) a short earthenware pipe on the top of a chimney to increase the draft | - |
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| chiropodist | (noun) a specialist in care for the feet | Synonyms: foot doctor, podiatrist |
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| chit | (noun) the bill in a restaurant | Synonyms: check, tab |
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| (noun) a dismissive term for a girl who is immature or who lacks respect | - |
| chitchat | (noun) light informal conversation for social occasions | Synonyms: causerie, chin-wag, chin-wagging, chin wag, chin wagging, chit-chat, chit chat, gab, gabfest, gossip, small talk, tittle-tattle |
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| chloroplast | (noun) plastid containing chlorophyll and other pigments; in plants that carry out photosynthesis | - |
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| chokepoint | (noun) a point of congestion or blockage | - |
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| (noun) a narrowing that reduces the flow through a channel | Synonyms: bottleneck, constriction |
| christ | (noun) any expected deliverer | Synonyms: messiah |
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| chromoplast | (noun) plastid containing pigments other than chlorophyll usually yellow or orange carotenoids | - |
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| cigaret | (noun) finely ground tobacco wrapped in paper; for smoking | Synonyms: butt, cigarette, coffin nail, fag |
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| circlet | (noun) decorated metal band worn around the head | - |
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| (noun) a small circle | - |
| circuit | (noun) a journey or route all the way around a particular place or area | Synonyms: tour |
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| (noun) movement once around a course | Synonyms: circle, lap |
| (noun) an electrical device that provides a path for electrical current to flow | Synonyms: electric circuit, electrical circuit |
| (noun) a racetrack for automobile races | Synonyms: racing circuit |
| (noun) (law) a judicial division of a state or the United States (so-called because originally judges traveled and held court in different locations); one of the twelve groups of states in the United States that is covered by a particular circuit court of appeals | - |
| (noun) an established itinerary of venues or events that a particular group of people travel to | - |
| (noun) the boundary line encompassing an area or object | Synonyms: circumference |
| civet | (noun) cat-like mammal typically secreting musk used in perfumes | Synonyms: civet cat |
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| claimant | (noun) someone who claims a benefit or right or title | - |
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| clairvoyant | (noun) someone who has the power of clairvoyance | - |
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| claret | (noun) a dark purplish-red color | - |
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| (noun) dry red Bordeaux or Bordeaux-like wine | Synonyms: red Bordeaux |
| clarinet | (noun) a single-reed instrument with a straight tube | - |
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| clarinetist | (noun) a musician who plays the clarinet | Synonyms: clarinettist |
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| clarinettist | (noun) a musician who plays the clarinet | Synonyms: clarinetist |
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| classicist | (noun) an artistic person who adheres to classicism | - |
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| (noun) a student of ancient Greek and Latin | Synonyms: classical scholar |
| clast | (noun) (geology) a constituent fragment of a clastic rock | - |
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| clawfoot | (noun) a deformity of the foot characterized by an abnormally high arch and hyperextension of the toes which gives the foot the appearance of a claw | Synonyms: pes cavus |
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| cleat | (noun) a strip of wood or metal used to strengthen the surface to which it is attached | - |
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| (noun) a fastener (usually with two projecting horns) around which a rope can be secured | - |
| (noun) a metal or leather projection (as from the sole of a shoe); prevents slipping | - |
| cleft | (noun) a long narrow cleft | Synonyms: crack, crevice, fissure, scissure |
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| (noun) a split or indentation in something (as the palate or chin) | - |
| clericalist | (noun) one who advocates clericalism | - |
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| client | (noun) (computer science) any computer that is hooked up to a computer network | Synonyms: guest, node |
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| (noun) a person who seeks the advice of a lawyer | - |
| (noun) someone who pays for goods or services | Synonyms: customer |
| climatologist | (noun) someone who is expert in climatology | - |
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| clit | (noun) a female sexual organ homologous to the penis | Synonyms: button, clitoris |
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| closeout | (noun) a sale intended to dispose of all remaining stock | - |
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| closet | (noun) a small private room for study or prayer | - |
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| (noun) a toilet in Britain | Synonyms: loo, W.C., water closet |
| (noun) a tall piece of furniture that provides storage space for clothes; has a door and rails or hooks for hanging clothes | Synonyms: press, wardrobe |
| (noun) a small room (or recess) or cabinet used for storage space | Synonyms: cupboard |
| clot | (noun) a lump of material formed from the content of a liquid | Synonyms: coagulum |
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| cloudburst | (noun) a heavy rain | Synonyms: deluge, downpour, pelter, soaker, torrent, waterspout |
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| clout | (noun) (boxing) a blow with the fist | Synonyms: biff, lick, poke, punch, slug |
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| (noun) a short nail with a flat head; used to attach sheet metal to wood | Synonyms: clout nail |
| (noun) special advantage or influence | Synonyms: pull |
| (noun) a target used in archery | - |
| cloveroot | (noun) hairy Eurasian plant with small yellow flowers and an astringent root formerly used medicinally | Synonyms: clover-root, Geum urbanum, herb bennet, wood avens |
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| clubfoot | (noun) congenital deformity of the foot usually marked by a curled shape or twisted position of the ankle and heel and toes | Synonyms: talipes |
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| coagulant | (noun) an agent that produces coagulation | Synonyms: coagulator |
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| coalpit | (noun) a mine where coal is dug from the ground | Synonyms: coal mine |
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| coast | (noun) the act of moving smoothly along a surface while remaining in contact with it | Synonyms: glide, slide |
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| (noun) the area within view | - |
| (noun) the shore of a sea or ocean | Synonyms: sea-coast, seacoast, seashore |
| (noun) a slope down which sleds may coast | - |
| coat | (noun) growth of hair or wool or fur covering the body of an animal | Synonyms: pelage |
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| (noun) an outer garment that has sleeves and covers the body from shoulder down; worn outdoors | - |
| (noun) a thin layer covering something | Synonyms: coating |
| cobalt | (noun) a hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition | Synonyms: atomic number 27, Co |
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| cobnut | (noun) nut of any of several trees of the genus Corylus | Synonyms: cob, filbert, hazelnut |
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| (noun) small nut-bearing tree much grown in Europe | Synonyms: Corylus avellana, Corylus avellana grandis, filbert |
| cockfight | (noun) a match in a cockpit between two fighting cocks heeled with metal gaffs | - |
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| cockloft | (noun) a small loft or garret | - |
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| cockpit | (noun) compartment where the pilot sits while flying the aircraft | - |
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| (noun) seat where the driver sits while driving a racing car | - |
| (noun) a pit for cockfights | - |
| cocksfoot | (noun) widely grown stout Old World hay and pasture grass | Synonyms: cockspur, Dactylis glomerata, orchard grass |
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| cocoanut | (noun) large hard-shelled oval nut with a fibrous husk containing thick white meat surrounding a central cavity filled (when fresh) with fluid or milk | Synonyms: coconut |
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| coconut | (noun) large hard-shelled oval nut with a fibrous husk containing thick white meat surrounding a central cavity filled (when fresh) with fluid or milk | Synonyms: cocoanut |
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| (noun) the edible white meat of a coconut; often shredded for use in e.g. cakes and curries | Synonyms: coconut meat |
| (noun) tall palm tree bearing coconuts as fruits; widely planted throughout the tropics | Synonyms: coco, coco palm, cocoa palm, coconut palm, coconut tree, Cocos nucifera |
| codefendant | (noun) a defendant who has been joined together with one or more other defendants in a single action | Synonyms: co-defendant |
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| coefficient | (noun) a constant number that serves as a measure of some property or characteristic | - |
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| coelostat | (noun) optical device used to follow the path of a celestial body and reflect its light into a telescope; has a movable and a fixed mirror | - |
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| coffeepot | (noun) tall pot in which coffee is brewed | - |
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| cohort | (noun) a band of warriors (originally a unit of a Roman Legion) | - |
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| (noun) a company of companions or supporters | - |
| (noun) a group of people having approximately the same age | Synonyms: age bracket, age group |
| colewort | (noun) a hardy cabbage with coarse curly leaves that do not form a head | Synonyms: borecole, Brassica oleracea acephala, cole, kail, kale |
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| colicroot | (noun) any of several perennials of the genus Aletris having grasslike leaves and bitter roots reputed to cure colic | Synonyms: colic root, crow corn, star grass, unicorn root |
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| collaborationist | (noun) someone who collaborates with an enemy occupying force | Synonyms: collaborator, quisling |
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| collect | (noun) a short prayer generally preceding the lesson in the Church of Rome or the Church of England | - |
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| collectivist | (noun) a person who belongs to the political left | Synonyms: left-winger, leftist |
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| collet | (noun) a band or collar that holds an individual stone in a jewelry setting | - |
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| (noun) a metal cap or band placed on a wooden pole to prevent splitting | Synonyms: ferrule |
| (noun) a cone-shaped chuck used for holding cylindrical pieces in a lathe | Synonyms: collet chuck |
| colonialist | (noun) a believer in colonialism | - |
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| colonist | (noun) a person who settles in a new colony or moves into new country | Synonyms: settler |
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| colorcast | (noun) a television program that is broadcast in color | Synonyms: colourcast |
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| colorist | (noun) a painter able to achieve special effects with color | - |
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| colourcast | (noun) a television program that is broadcast in color | Synonyms: colorcast |
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| colt | (noun) a young male horse under the age of four | - |
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| coltsfoot | (noun) perennial herb with large rounded leaves resembling a colt's foot and yellow flowers appearing before the leaves do; native to Europe but now nearly cosmopolitan; used medicinally especially formerly | Synonyms: Tussilago farfara |
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| (noun) tufted evergreen perennial herb having spikes of tiny white flowers and glossy green round to heart-shaped leaves that become coppery to maroon or purplish in fall | Synonyms: beetleweed, galax, Galax urceolata, galaxy, wandflower |
| columnist | (noun) a journalist who writes editorials | Synonyms: editorialist |
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| combat | (noun) an engagement fought between two military forces | Synonyms: armed combat |
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| (noun) the act of fighting; any contest or struggle | Synonyms: fight, fighting, scrap |
| combatant | (noun) someone who fights (or is fighting) | Synonyms: battler, belligerent, fighter, scrapper |
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| comet | (noun) (astronomy) a relatively small extraterrestrial body consisting of a frozen mass that travels around the sun in a highly elliptical orbit | - |
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| comfit | (noun) candy containing a fruit or nut | - |
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| comfort | (noun) the act of consoling; giving relief in affliction | Synonyms: consolation, solace |
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| (noun) assistance, such as that provided to an enemy or to a known criminal | - |
| (noun) bedding made of two layers of cloth filled with stuffing and stitched together | Synonyms: comforter, puff, quilt |
| (noun) a feeling of freedom from worry or disappointment | - |
| (noun) a state of being relaxed and feeling no pain | Synonyms: comfortableness |
| (noun) a freedom from financial difficulty that promotes a comfortable state | Synonyms: ease |
| (noun) satisfaction or physical well-being provided by a person or thing | - |
| commandant | (noun) an officer in command of a military unit | Synonyms: commander, commanding officer |
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| commandment | (noun) a doctrine that is taught | Synonyms: precept, teaching |
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| (noun) something that is commanded | - |
| commencement | (noun) the act of starting something | Synonyms: beginning, start |
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| (noun) an academic exercise in which diplomas are conferred | Synonyms: commencement ceremony, commencement exercise, graduation, graduation exercise |
| (noun) the time at which something is supposed to begin | Synonyms: beginning, first, get-go, kickoff, offset, outset, showtime, start, starting time |
| comment | (noun) a statement that expresses a personal opinion or belief or adds information | Synonyms: input, remark |
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| (noun) a written explanation or criticism or illustration that is added to a book or other textual material | Synonyms: commentary |
| (noun) a report (often malicious) about the behavior of other people | Synonyms: gossip, scuttlebutt |
| commissariat | (noun) a stock or supply of foods | Synonyms: provender, provisions, viands, victuals |
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| commitment | (noun) the act of binding yourself (intellectually or emotionally) to a course of action | Synonyms: allegiance, dedication, loyalty |
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| (noun) the official act of consigning a person to confinement (as in a prison or mental hospital) | Synonyms: committal, consignment |
| (noun) an engagement by contract involving financial obligation | - |
| (noun) the trait of sincere and steadfast fixity of purpose | Synonyms: committedness |
| (noun) a message that makes a pledge | Synonyms: dedication |
| communicant | (noun) a person entitled to receive Communion | - |
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| communist | (noun) a socialist who advocates communism | Synonyms: commie |
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| compact | (noun) a small cosmetics case with a mirror; to be carried in a woman's purse | Synonyms: powder compact |
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| (noun) a small and economical car | Synonyms: compact car |
| (noun) a signed written agreement between two or more parties (nations) to perform some action | Synonyms: concordat, covenant |
| compartment | (noun) a partitioned section, chamber, or separate room within a larger enclosed area | - |
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| (noun) a space into which an area is subdivided | - |
| compatriot | (noun) a person from your own country | - |
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| complainant | (noun) a person who brings an action in a court of law | Synonyms: plaintiff |
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| complaint | (noun) an expression of grievance or resentment | - |
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| (noun) (formerly) a loud cry (or repeated cries) of pain or rage or sorrow | - |
| (noun) (civil law) the first pleading of the plaintiff setting out the facts on which the claim for relief is based | - |
| (noun) (criminal law) a pleading describing some wrong or offense | Synonyms: charge |
| (noun) an often persistent bodily disorder or disease; a cause for complaining | Synonyms: ailment, ill |
| complement | (noun) something added to complete or embellish or make perfect | Synonyms: accompaniment |
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| (noun) either of two parts that mutually complete each other | - |
| (noun) a word or phrase used to complete a grammatical construction | - |
| (noun) number needed to make up a whole force | Synonyms: full complement |
| (noun) a complete number or quantity | - |
| (noun) one of a series of enzymes in the blood serum that are part of the immune response | - |
| compliment | (noun) a remark (or act) expressing praise and admiration | - |
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| component | (noun) an artifact that is one of the individual parts of which a composite entity is made up; especially a part that can be separated from or attached to a system | Synonyms: constituent, element |
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| (noun) an abstract part of something | Synonyms: constituent, element, factor, ingredient |
| (noun) something determined in relation to something that includes it | Synonyms: component part, constituent, part, portion |
| comportment | (noun) dignified manner or conduct | Synonyms: bearing, mien, presence |
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| compost | (noun) a mixture of decaying vegetation and manure; used as a fertilizer | - |
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| concealment | (noun) the activity of keeping something secret | Synonyms: concealing, hiding |
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| (noun) a covering that serves to conceal or shelter something | Synonyms: cover, covert, screen |
| (noun) the condition of being concealed or hidden | Synonyms: privacy, privateness, secrecy |
| conceit | (noun) the trait of being unduly vain and conceited; false pride | Synonyms: conceitedness, vanity |
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| (noun) a witty or ingenious turn of phrase | - |
| (noun) an artistic device or effect | - |
| (noun) an elaborate poetic image or a far-fetched comparison of very dissimilar things | - |
| (noun) feelings of excessive pride | Synonyms: amour propre, self-love, vanity |