| calaba | (noun) West Indian tree having racemes of fragrant white flowers and yielding a durable timber and resinous juice | Synonyms: Calophyllum calaba, Santa Maria tree |
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| calabash | (noun) bottle made from the dried shell of a bottle gourd | Synonyms: gourd |
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| (noun) a pipe for smoking; has a curved stem and a large bowl made from a calabash gourd | Synonyms: calabash pipe |
| (noun) tropical American evergreen that produces large round gourds | Synonyms: calabash tree, Crescentia cujete |
| (noun) round gourd of the calabash tree | - |
| (noun) Old World climbing plant with hard-shelled bottle-shaped gourds as fruits | Synonyms: bottle gourd, Lagenaria siceraria |
| calabazilla | (noun) perennial vine of dry parts of central and southwestern United States and Mexico having small hard mottled green inedible fruit | Synonyms: buffalo gourd, Cucurbita foetidissima, Missouri gourd, prairie gourd, prairie gourd vine, wild pumpkin |
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| calabura | (noun) a fast-growing tropical American evergreen having white flowers and fleshy edible fruit; a bark yields a silky fiber used in cordage and wood is valuable for staves | Synonyms: calabur tree, Jamaican cherry, Muntingia calabura, silk wood, silkwood |
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| caladenia | (noun) any of various orchids of the genus Caladenia | - |
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| caladium | (noun) any plant of the genus Caladium cultivated for their ornamental foliage variously patterned in white or pink or red | - |
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| calamari | (noun) (Italian cuisine) squid prepared as food | Synonyms: calamary, squid |
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| calamary | (noun) (Italian cuisine) squid prepared as food | Synonyms: calamari, squid |
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| calamine | (noun) a white mineral; a common ore of zinc | Synonyms: hemimorphite |
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| calamint | (noun) perennial aromatic herbs growing in hedgerows or scrub or open woodlands from western Europe to central Asia and in North America | - |
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| calamitous | (adjective) (of events) having extremely unfortunate or dire consequences; bringing ruin | Synonyms: black, disastrous, fatal, fateful |
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| calamity | (noun) an event resulting in great loss and misfortune | Synonyms: cataclysm, catastrophe, disaster, tragedy |
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| calamondin | (noun) a fruit of the calamondin tree. | - |
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| calamus | (noun) the hollow spine of a feather | Synonyms: quill, shaft |
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| (noun) any tropical Asian palm of the genus Calamus; light tough stems are a source of rattan canes | - |
| (noun) perennial marsh plant having swordlike leaves and aromatic roots | Synonyms: Acorus calamus, flagroot, myrtle flag, sweet calamus, sweet flag |
| (noun) the aromatic root of the sweet flag used medicinally | - |
| calando | (adjective) (music) gradually decreasing in tempo and volume | - |
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| calanthe | (noun) any of various showy orchids of the genus Calanthe having white or yellow or rose-colored flowers and broad leaves folded lengthwise | - |
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| calash | (noun) the folding hood of a horse-drawn carriage | Synonyms: calash top, caleche |
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| (noun) a woman's large folded hooped hood; worn in the 18th century | Synonyms: caleche |
| calcaneal | (adjective) relating to the heel bone or heel | - |
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| calcaneus | (noun) the largest tarsal bone; forms the human heel | Synonyms: heelbone, os tarsi fibulare |
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| calcareous | (adjective) composed of or containing or resembling calcium carbonate or calcite or chalk | Synonyms: chalky |
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| calced | (adjective) used of certain religious orders who wear shoes | Synonyms: shod |
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| calcedony | (noun) a milky or greyish translucent to transparent quartz | Synonyms: chalcedony |
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| calceiform | (adjective) of slipper-shaped blossoms | Synonyms: calceolate |
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| calceolaria | (noun) any garden plant of the genus Calceolaria having flowers with large inflated slipper-shaped lower lip | Synonyms: slipperwort |
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| calceolate | (adjective) of slipper-shaped blossoms | Synonyms: calceiform |
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| calceus | (noun) a shoe covering the ankle; worn by ancient Romans | - |
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| calcic | (adjective) derived from or containing calcium or lime | - |
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| calcicolous | (adjective) growing or living in soil rich in lime | - |
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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 | - |
| calcimine | (noun) a water-base paint containing zinc oxide and glue and coloring; used as a wash for walls and ceilings | - |
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| (verb) cover with calcimine | - |
| calcination | (noun) the conversion of metals into their oxides as a result of heating to a high temperature | - |
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| calcine | (verb) heat a substance so that it oxidizes or reduces | - |
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| calcite | (noun) a common mineral consisting of crystallized calcium carbonate; a major constituent of limestone | - |
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| calcitic | (adjective) of or relating to or containing calcite | - |
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| calcitonin | (noun) thyroid hormone that tends to lower the level of calcium in the blood plasma and inhibit resorption of bone | Synonyms: thyrocalcitonin |
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| calcium | (noun) a white metallic element that burns with a brilliant light; the fifth most abundant element in the earth's crust; an important component of most plants and animals | Synonyms: atomic number 20, Ca |
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| calculability | (noun) The quality of being subject to or ascertainable by calculation. | - |
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| calculable | (adjective) able to be calculated or estimated | - |
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| calculate | (verb) make a mathematical calculation or computation | Synonyms: cipher, compute, cypher, figure, reckon, work out |
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| (verb) specifically design a product, event, or activity for a certain public | Synonyms: aim, direct |
| (verb) judge to be probable | Synonyms: count on, estimate, figure, forecast, reckon |
| (verb) have faith or confidence in | Synonyms: bank, bet, count, depend, look, reckon, rely, swear |
| (verb) predict in advance | Synonyms: forecast |
| (verb) keep an account of | Synonyms: account |
| calculated | (adjective) carefully thought out in advance | Synonyms: deliberate, measured |
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| calculating | (adjective) acting with a specific goal | Synonyms: calculative, conniving, scheming, shrewd |
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| calculatingly | (adverb) in a calculating manner | - |
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| calculation | (noun) the procedure of calculating; determining something by mathematical or logical methods | Synonyms: computation, computing |
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| (noun) problem solving that involves numbers or quantities | Synonyms: computation, figuring, reckoning |
| (noun) planning something carefully and intentionally | Synonyms: deliberation |
| calculative | (adjective) acting with a specific goal | Synonyms: calculating, conniving, scheming, shrewd |
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| calculator | (noun) a small machine that is used for mathematical calculations; can be mechanical or electronic | Synonyms: calculating machine |
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| (noun) an expert at calculation (or at operating calculating machines) | Synonyms: computer, estimator, figurer, reckoner |
| calculous | (adjective) relating to or caused by or having a calculus or calculi | - |
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| calculus | (noun) the branch of mathematics that is concerned with limits and with the differentiation and integration of functions | Synonyms: infinitesimal calculus |
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| (noun) a hard lump produced by the concretion of mineral salts; found in hollow organs or ducts of the body | Synonyms: concretion |
| (noun) an incrustation that forms on the teeth and gums | Synonyms: tartar, tophus |
| caldera | (noun) a large crater caused by the violent explosion of a volcano that collapses into a depression | - |
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| caldron | (noun) a very large pot that is used for boiling | Synonyms: cauldron |
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| calean | (noun) an oriental tobacco pipe with a long flexible tube connected to a container where the smoke is cooled by passing through water | Synonyms: chicha, hookah, hubble-bubble, hubbly-bubbly, kalian, narghile, nargileh, sheesha, shisha, water pipe |
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| caleche | (noun) the folding hood of a horse-drawn carriage | Synonyms: calash, calash top |
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| (noun) a woman's large folded hooped hood; worn in the 18th century | Synonyms: calash |
| 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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| calendar | (noun) a list or register of events (appointments or social events or court cases etc) | - |
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| (noun) a tabular array of the days (usually for one year) | - |
| (noun) a system of timekeeping that defines the beginning and length and divisions of the year | - |
| (verb) enter into a calendar | - |
| calender | (noun) a machine that smooths or glazes paper or cloth by pressing it between plates or passing it through rollers | - |
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| (verb) press between rollers or plates so as to smooth, glaze, or thin into sheets | - |
| calendered | (adjective) (of paper and fabric and leather) having a surface made smooth and shiny especially by pressing between rollers | Synonyms: glossy |
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| calendric | (adjective) relating to or characteristic of or used in a calendar or time measurement | Synonyms: calendrical |
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| calendrical | (adjective) relating to or characteristic of or used in a calendar or time measurement | Synonyms: calendric |
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| calendula | (noun) any of numerous chiefly annual herbs of the genus Calendula widely cultivated for their yellow or orange flowers; often used for medicinal and culinary purposes | - |
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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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| caliber | (noun) a degree or grade of excellence or worth | Synonyms: calibre, quality |
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| (noun) diameter of a tube or gun barrel | Synonyms: bore, calibre, gauge |
| calibrate | (verb) make fine adjustments or divide into marked intervals for optimal measuring | Synonyms: fine-tune, graduate |
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| (verb) measure the caliber of | - |
| (verb) mark (the scale of a measuring instrument) so that it can be read in the desired units | - |
| calibrated | (adjective) marked with or divided into degrees | Synonyms: graduated |
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| calibration | (noun) the act of checking or adjusting (by comparison with a standard) the accuracy of a measuring instrument | Synonyms: standardisation, standardization |
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| calibre | (noun) a degree or grade of excellence or worth | Synonyms: caliber, quality |
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| (noun) diameter of a tube or gun barrel | Synonyms: bore, caliber, gauge |
| caliche | (noun) nitrate-bearing rock or gravel of the sodium nitrate deposits of Chile and Peru | - |
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| (noun) crust or layer of hard subsoil encrusted with calcium-carbonate occurring in arid or semiarid regions | Synonyms: hardpan |
| calico | (adjective) made of calico or resembling calico in being patterned | - |
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| (adjective) having sections or patches colored differently and usually brightly | Synonyms: motley, multi-color, multi-colored, multi-colour, multi-coloured, multicolor, multicolored, multicolour, multicoloured, painted, particolored, particoloured, piebald, pied, varicolored, varicoloured |
| (noun) coarse cloth with a bright print | - |
| calicular | (adjective) relating to or resembling a calyculus | Synonyms: calycular |
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| caliculus | (noun) a small cup-shaped structure (as a taste bud or optic cup or cavity of a coral containing a polyp) | Synonyms: calycle, calyculus |
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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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| caliginous | (adjective) dark and misty and gloomy | - |
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| caliper | (noun) an instrument for measuring the distance between two points | Synonyms: calliper |
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| (verb) measure the diameter of something with calipers | Synonyms: calliper |
| caliph | (noun) the civil and religious leader of a Muslim state considered to be a representative of Allah on earth | Synonyms: calif, kalif, kaliph, khalif, khalifah |
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| caliphate | (noun) the office of a caliph | - |
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| (noun) the territorial jurisdiction of a caliph | - |
| calisaya | (noun) Peruvian shrub or small tree having large glossy leaves and cymes of fragrant yellow to green or red flowers; cultivated for its medicinal bark | Synonyms: Cinchona calisaya, Cinchona ledgeriana, Cinchona officinalis |
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| calisthenic | (adjective) of or relating to calisthenics | - |
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| calisthenics | (noun) the practice of calisthenic exercises | Synonyms: callisthenics |
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| (noun) light exercises designed to promote general fitness | Synonyms: callisthenics |
| calk | (noun) a metal cleat on the bottom front of a horseshoe to prevent slipping | Synonyms: calkin |
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| (verb) injure with a calk | - |
| (verb) seal with caulking | Synonyms: caulk |
| (verb) provide with calks | - |
| calkin | (noun) a metal cleat on the bottom front of a horseshoe to prevent slipping | Synonyms: calk |
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| call | (noun) (sports) the decision made by an umpire or referee | - |
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| (noun) a visit in an official or professional capacity | - |
| (noun) a brief social visit | - |
| (noun) the option to buy a given stock (or stock index or commodity future) at a given price before a given date | Synonyms: call option |
| (noun) a method of contacting a person by phone | Synonyms: phone call, telephone call |
| (noun) a loud utterance; often in protest or opposition | Synonyms: cry, outcry, shout, vociferation, yell |
| (noun) the characteristic sound produced by a bird | Synonyms: birdcall, birdsong, song |
| (noun) a request | - |
| (noun) a demand | Synonyms: claim |
| (noun) a demand for a show of hands in a card game | - |
| (noun) an instruction that interrupts the program being executed | - |
| (noun) a demand by a broker that a customer deposit enough to bring his margin up to the minimum requirement | Synonyms: margin call |
| (verb) rouse somebody from sleep with a call | - |
| (verb) challenge the sincerity or truthfulness of | - |
| (verb) consider or regard as being | - |
| (verb) utter in a loud voice or announce | - |
| (verb) ascribe a quality to or give a name of a common noun that reflects a quality | - |
| (verb) get or try to get into communication (with someone) by telephone | Synonyms: call up, phone, ring, telephone |
| (verb) assign a specified (usually proper) name to | Synonyms: be known as, know as, name |
| (verb) utter a characteristic note or cry | - |
| (verb) send a message or attempt to reach someone by radio, phone, etc.; make a signal to in order to transmit a message | - |
| (verb) order, request, or command to come | Synonyms: send for |
| (verb) indicate a decision in regard to | - |
| (verb) challenge (somebody) to make good on a statement; charge with or censure for an offense | - |
| (verb) declare in the capacity of an umpire or referee | - |
| (verb) utter a sudden loud cry | Synonyms: cry, holler, hollo, scream, shout, shout out, squall, yell |
| (verb) make a prediction about; tell in advance | Synonyms: anticipate, forebode, foretell, predict, prognosticate, promise |
| (verb) lure by imitating the characteristic call of an animal | - |
| (verb) present for redemption before maturation | - |
| (verb) read aloud to check for omissions or absentees | - |
| (verb) order, summon, or request for a specific duty or activity, work, role | - |
| (verb) order or request or give a command for | - |
| (verb) give the calls (to the dancers) for a square dance | Synonyms: call off |
| (verb) make a demand, as for a card or a suit or a show of hands | Synonyms: bid |
| (verb) demand payment of (a loan) | Synonyms: call in |
| (verb) pay a brief visit | Synonyms: call in, visit |
| (verb) call a meeting; invite or command to meet | - |
| (verb) make a stop in a harbour | - |
| (verb) greet, as with a prescribed form, title, or name | Synonyms: address |
| (verb) stop or postpone because of adverse conditions, such as bad weather | - |
| calla | (noun) South African plant widely cultivated for its showy pure white spathe and yellow spadix | Synonyms: arum lily, calla lily, Zantedeschia aethiopica |
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| callable | (adjective) subject to a demand for payment before due date | - |
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| callathump | (noun) a noisy mock serenade (made by banging pans and kettles) to a newly married couple | Synonyms: belling, callithump, charivari, chivaree, shivaree |
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| (noun) a noisy boisterous parade | Synonyms: callithump, callithump parade |
| callback | (noun) a request by the manufacturer of a defective product to return the product (as for replacement or repair) | Synonyms: recall |
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| caller | (adjective) providing coolness | - |
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| (adjective) fresh | - |
| (noun) a social or business visitor | Synonyms: company |
| (noun) the person initiating a telephone call | Synonyms: caller-up, phoner, telephoner |
| (noun) the person who convenes a meeting | - |
| (noun) someone who proclaims or summons in a loud voice | - |
| (noun) a person who announces the changes of steps during a dance | Synonyms: caller-out |
| (noun) the bettor in a card game who matches the bet and calls for a show of hands | - |
| (noun) an investor who buys a call option | - |
| calliandra | (noun) any of various shrubs and small trees valued for their fine foliage and attractive spreading habit and clustered white to deep pink or red flowers | - |
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| calligraph | (verb) write beautifully and ornamentally | - |
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| calligrapher | (noun) someone skilled in penmanship | Synonyms: calligraphist |
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| calligraphic | (adjective) of or relating to or expressed in calligraphy | Synonyms: calligraphical |
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| calligraphical | (adjective) of or relating to or expressed in calligraphy | Synonyms: calligraphic |
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| calligraphist | (noun) someone skilled in penmanship | Synonyms: calligrapher |
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