| abvolt | (noun) a unit of potential equal to one-hundred-millionth of a volt | - |
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| acculturation | (noun) the adoption of the behavior patterns of the surrounding culture | Synonyms: enculturation, socialisation, socialization |
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| (noun) all the knowledge and values shared by a society | Synonyms: culture |
| (noun) the process of assimilating new ideas into an existing cognitive structure | Synonyms: assimilation |
| admiralty | (noun) the office of admiral | - |
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| (noun) the department in charge of the navy (as in Great Britain) | - |
| adult | (noun) any mature animal | - |
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| (noun) a fully developed person from maturity onward | Synonyms: grownup |
| adulterant | (noun) any substance that lessens the purity or effectiveness of a substance | Synonyms: adulterator |
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| adulteration | (noun) the act of adulterating (especially the illicit substitution of one substance for another) | - |
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| (noun) being mixed with extraneous material; the product of adulterating | Synonyms: debasement |
| adulterator | (noun) a changer who lessens the purity or effectiveness of a substance | - |
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| (noun) any substance that lessens the purity or effectiveness of a substance | Synonyms: adulterant |
| adulterer | (noun) someone who commits adultery or fornication | Synonyms: fornicator |
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| adulteress | (noun) a woman adulterer | Synonyms: fornicatress, hussy, jade, loose woman, slut, strumpet, trollop |
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| adulterousness | (noun) The quality of being adulterous, involving sexual intercourse by a married person with someone other than their spouse. | - |
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| adultery | (noun) extramarital sex that willfully and maliciously interferes with marriage relations | Synonyms: criminal conversation, fornication |
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| adulthood | (noun) the state (and responsibilities) of a person who has attained maturity | - |
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| (noun) the period of time in your life after your physical growth has stopped and you are fully developed | Synonyms: maturity |
| adulting | (noun) acting like an adult | - |
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| agriculturalist | (noun) someone concerned with the science or art or business of cultivating the soil | Synonyms: agriculturist, cultivator, grower, raiser |
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| agriculture | (noun) the practice of cultivating the land or raising stock | Synonyms: farming, husbandry |
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| (noun) a large-scale farming enterprise | Synonyms: agribusiness, factory farm |
| (noun) the class of people engaged in growing food | - |
| agriculturist | (noun) someone concerned with the science or art or business of cultivating the soil | Synonyms: agriculturalist, cultivator, grower, raiser |
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| altar | (noun) a raised structure on which gifts or sacrifices to a god are made | - |
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| (noun) the table in Christian churches where communion is given | Synonyms: communion table, Lord's table |
| altarpiece | (noun) a painted or carved screen placed above and behind an altar or communion table | Synonyms: reredos |
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| altazimuth | (noun) an instrument that measures the altitude and azimuth of celestial bodies; used in navigation | - |
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| altcoin | (noun) an alternative cryptocurrency | - |
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| alterability | (noun) the quality of being alterable | - |
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| alteration | (noun) the act of revising or altering (involving reconsideration and modification) | Synonyms: revision |
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| (noun) the act of making something different (as e.g. the size of a garment) | Synonyms: adjustment, modification |
| (noun) an event that occurs when something passes from one state or phase to another | Synonyms: change, modification |
| altercation | (noun) noisy quarrel | Synonyms: affray, fracas |
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| altering | (noun) the sterilization of an animal | Synonyms: fixing, neutering |
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| alternate | (noun) someone who takes the place of another person | Synonyms: replacement, surrogate |
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| alternation | (noun) successive change from one thing or state to another and back again | - |
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| alternative | (noun) one of a number of things from which only one can be chosen | Synonyms: choice, option |
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| alternator | (noun) an old term for an electric generator that produces alternating current (especially in automobiles) | - |
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| althaea | (noun) any of various plants of the genus Althaea; similar to but having smaller flowers than genus Alcea | Synonyms: althea, hollyhock |
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| althea | (noun) any of various plants of the genus Althaea; similar to but having smaller flowers than genus Alcea | Synonyms: althaea, hollyhock |
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| altimeter | (noun) an instrument that measures the height above ground; used in navigation | - |
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| altitude | (noun) elevation especially above sea level or above the earth's surface | Synonyms: height |
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| (noun) angular distance above the horizon (especially of a celestial object) | Synonyms: ALT, EL, elevation |
| (noun) the perpendicular distance from the base of a geometric figure to the opposite vertex (or side if parallel) | - |
| alto | (noun) the pitch range of the lowest female voice | - |
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| (noun) (of a musical instrument) the second highest instrument in a family of musical instruments | - |
| (noun) the lowest female singing voice | Synonyms: contralto |
| (noun) the highest adult male singing voice | Synonyms: countertenor |
| (noun) a singer whose voice lies in the alto clef | - |
| altocumulus | (noun) a cumulus cloud at an intermediate altitude of 2 or 3 miles | Synonyms: altocumulus cloud |
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| altogether | (noun) informal terms for nakedness | Synonyms: birthday suit, raw |
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| altoist | (noun) a musician who plays the alto saxophone | Synonyms: alto saxophonist |
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| altostratus | (noun) a stratus cloud at an intermediate altitude of 2 or 3 miles | Synonyms: altostratus cloud |
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| altruism | (noun) the quality of unselfish concern for the welfare of others | Synonyms: selflessness |
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| altruist | (noun) someone who makes charitable donations intended to increase human well-being | Synonyms: philanthropist |
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| antepenult | (noun) the 3rd syllable of a word counting back from the end | Synonyms: antepenultima, antepenultimate |
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| antepenultima | (noun) the 3rd syllable of a word counting back from the end | Synonyms: antepenult, antepenultimate |
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| antepenultimate | (noun) the 3rd syllable of a word counting back from the end | Synonyms: antepenult, antepenultima |
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| apiculture | (noun) the cultivation of bees on a commercial scale for the production of honey | Synonyms: beekeeping |
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| apiculturist | (noun) a farmer who keeps bees for their honey | Synonyms: apiarist, beekeeper |
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| aquaculture | (noun) rearing aquatic animals or cultivating aquatic plants for food | - |
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| aquiculture | (noun) a technique of growing plants (without soil) in water containing dissolved nutrients | Synonyms: hydroponics, tank farming |
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| arboriculture | (noun) the tending of and caring for trees | Synonyms: tree farming |
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| arboriculturist | (noun) someone trained in forestry | Synonyms: forester, tree farmer |
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| asphalt | (noun) a dark bituminous substance found in natural beds and as residue from petroleum distillation; consists mainly of hydrocarbons | Synonyms: mineral pitch |
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| (noun) mixed asphalt and crushed gravel or sand; used especially for paving but also for roofing | - |
| assault | (noun) close fighting during the culmination of a military attack | - |
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| (noun) a threatened or attempted physical attack by someone who appears to be able to cause bodily harm if not stopped | - |
| (noun) the crime of forcing a person to submit to sexual intercourse against his or her will | Synonyms: rape, ravishment, violation |
| assaulter | (noun) someone who attacks | Synonyms: aggressor, assailant, attacker |
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| auscultation | (noun) listening to sounds within the body (usually with a stethoscope) | - |
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| basalt | (noun) the commonest type of solidified lava; a dense dark grey fine-grained igneous rock that is composed chiefly of plagioclase feldspar and pyroxene | - |
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| belt | (noun) the act of hitting vigorously | Synonyms: knock, rap, whack, whang |
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| (noun) a band to tie or buckle around the body (usually at the waist) | - |
| (noun) endless loop of flexible material between two rotating shafts or pulleys | - |
| (noun) ammunition (usually of small caliber) loaded in flexible linked strips for use in a machine gun | Synonyms: belt ammunition, belted ammunition |
| (noun) a vigorous blow | Synonyms: bang, bash, knock, smash |
| (noun) an elongated region where a specific condition or characteristic is found | - |
| (noun) a path or strip (as cut by one course of mowing) | Synonyms: swath |
| belting | (noun) the material of which belts are made | - |
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| beltway | (noun) a highway that encircles an urban area so that traffic does not have to pass through the center | Synonyms: bypass, ring road, ringway |
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| biltong | (noun) meat that is salted and cut into strips and dried in the sun | - |
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| bloodguilt | (noun) the state of being guilty of bloodshed and murder | - |
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| bolt | (noun) a sudden abandonment (as from a political party) | - |
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| (noun) the act of moving with great haste | Synonyms: dash |
| (noun) a screw that screws into a nut to form a fastener | - |
| (noun) the part of a lock that is engaged or withdrawn with a key | Synonyms: deadbolt |
| (noun) a sliding bar in a breech-loading firearm that ejects an empty cartridge and replaces it and closes the breech | - |
| (noun) a roll of cloth or wallpaper of a definite length | - |
| (noun) a discharge of lightning accompanied by thunder | Synonyms: bolt of lightning, thunderbolt |
| bolti | (noun) important food fish of the Nile and other rivers of Africa and Asia Minor | Synonyms: Tilapia nilotica |
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| bullterrier | (noun) a powerful short-haired terrier originated in England by crossing the bulldog with terriers | Synonyms: bull terrier |
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| caltrop | (noun) tropical annual procumbent poisonous subshrub having fruit that splits into five spiny nutlets; serious pasture weed | Synonyms: devil's weed, Tribulus terestris |
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| (noun) Mediterranean annual or biennial herb having pinkish to purple flowers surrounded by spine-tipped scales; naturalized in America | Synonyms: Centauria calcitrapa, star-thistle |
| (noun) a plant of the genus Trapa bearing spiny four-pronged edible nutlike fruits | Synonyms: water chestnut, water chestnut plant |
| casualty | (noun) a decrease of military personnel or equipment | - |
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| (noun) an accident that causes someone to die | Synonyms: fatal accident |
| (noun) someone injured or killed in an accident | Synonyms: injured party |
| (noun) someone injured or killed or captured or missing in a military engagement | - |
| catapult | (noun) an engine that provided medieval artillery used during sieges; a heavy war engine for hurling large stones and other missiles | - |
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| (noun) a plaything consisting of a Y-shaped stick with elastic between the arms; used to propel small stones | Synonyms: sling, slingshot |
| (noun) a device that launches aircraft from a warship | Synonyms: launcher |
| celtuce | (noun) leaves having celery-like stems eaten raw or cooked | - |
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| (noun) lettuce valued especially for its edible stems | Synonyms: Lactuca sativa asparagina, stem lettuce |
| 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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| cobaltite | (noun) a rare silvery-white mineral; important ore of cobalt | - |
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| colt | (noun) a young male horse under the age of four | - |
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| coltan | (noun) a valuable black mineral combining niobite and tantalite; used in cell phones and computer chips | Synonyms: columbite-tantalite |
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| colter | (noun) a sharp steel wedge that precedes the plow and cuts vertically through the soil | Synonyms: coulter |
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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 |
| commonalty | (noun) a class composed of persons lacking clerical or noble rank | Synonyms: commonality, commons |
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| commonwealth | (noun) a politically organized body of people under a single government | Synonyms: body politic, country, land, nation, res publica, state |
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| (noun) a political system in which the supreme power lies in a body of citizens who can elect people to represent them | Synonyms: democracy, republic |
| (noun) a world organization of autonomous states that are united in allegiance to a central power but are not subordinate to it or to one another | - |
| (noun) the official name of some states in the United States (Massachusetts and Pennsylvania and Virginia and Kentucky) and associated territories (Puerto Rico) | - |
| consultancy | (noun) the practice of giving expert advice within a particular field | - |
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| consultant | (noun) an expert who gives advice | Synonyms: adviser, advisor |
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| consultation | (noun) the act of referring or consulting | Synonyms: reference |
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| (noun) a conference (usually with someone important) | Synonyms: audience, interview |
| (noun) a conference between two or more people to consider a particular question | - |
| contralto | (noun) the lowest female singing voice | Synonyms: alto |
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| (noun) a woman singer having a contralto voice | - |
| coulter | (noun) a sharp steel wedge that precedes the plow and cuts vertically through the soil | Synonyms: colter |
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| counterculture | (noun) a culture with lifestyles and values opposed to those of the established culture | - |
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| cruelty | (noun) a cruel act; a deliberate infliction of pain and suffering | Synonyms: inhuman treatment |
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| (noun) the quality of being cruel and causing tension or annoyance | Synonyms: cruelness, harshness |
| (noun) feelings of extreme heartlessness | Synonyms: mercilessness, pitilessness, ruthlessness |
| cult | (noun) a system of religious beliefs and rituals | Synonyms: cultus, religious cult |
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| (noun) an interest followed with exaggerated zeal | Synonyms: craze, fad, furor, furore, rage |
| (noun) a religion or sect that is generally considered to be unorthodox, extremist, or false | - |
| (noun) followers of an exclusive system of beliefs and practices | - |
| (noun) followers of an unorthodox, extremist, or false religion or sect who often live outside of conventional society under the direction of a charismatic leader | - |
| culteranismo | (noun) an esoteric style of writing that attempted to elevate poetic language and themes by re-Latinizing them, using classical allusions, vocabulary, syntax, and word order. | Synonyms: Gongorismo |
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| cultism | (noun) religious zeal; the willingness to serve God | Synonyms: devotion, veneration |
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| (noun) devotion to the doctrine or a cult or to the practices of a cult | - |
| cultist | (noun) a member of a religious cult | - |
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| (noun) a member of an unorthodox cult who generally lives outside of conventional society under the direction of a charismatic leader | - |
| cultivar | (noun) a variety of a plant developed from a natural species and maintained under cultivation | - |
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| cultivation | (noun) (agriculture) production of food by preparing the land to grow crops (especially on a large scale) | - |
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| (noun) socialization through training and education to develop one's mind or manners | - |
| (noun) the act of raising or growing plants (especially on a large scale) | - |
| (noun) the process of fostering the growth of something | - |
| (noun) a highly developed state of perfection; having a flawless or impeccable quality | Synonyms: culture, finish, polish, refinement |
| cultivator | (noun) a farm implement used to break up the surface of the soil (for aeration and weed control and conservation of moisture) | Synonyms: tiller |
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| (noun) someone concerned with the science or art or business of cultivating the soil | Synonyms: agriculturalist, agriculturist, grower, raiser |
| culturati | (noun) people interested in culture and cultural activities | - |
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| culture | (noun) the raising of plants or animals | - |
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| (noun) (biology) the growing of microorganisms in a nutrient medium (such as gelatin or agar) | - |
| (noun) the tastes in art and manners that are favored by a social group | - |
| (noun) all the knowledge and values shared by a society | Synonyms: acculturation |
| (noun) the attitudes and behavior that are characteristic of a particular social group or organization | - |
| (noun) a particular society at a particular time and place | Synonyms: civilisation, civilization |
| (noun) a highly developed state of perfection; having a flawless or impeccable quality | Synonyms: cultivation, finish, polish, refinement |
| cultus | (noun) a system of religious beliefs and rituals | Synonyms: cult, religious cult |
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| cyberculture | (noun) the culture that emerges from the use of computers for communication and entertainment and business | - |
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| daredeviltry | (noun) boldness as manifested in rash and daredevil behavior | Synonyms: daredevilry |
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| deadbolt | (noun) the part of a lock that is engaged or withdrawn with a key | Synonyms: bolt |
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| default | (noun) loss due to not showing up | - |
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| (noun) an option that is selected automatically unless an alternative is specified | Synonyms: default option |
| (noun) loss resulting from failure of a debt to be paid | Synonyms: nonpayment, nonremittal |
| (noun) act of failing to meet a financial obligation | Synonyms: nonpayment, nonremittal |
| defaulter | (noun) a contestant who forfeits a match | - |
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| (noun) someone who fails to meet a financial obligation | Synonyms: deadbeat |
| (noun) someone who fails to make a required appearance in court | - |
| delta | (noun) the 4th letter of the Greek alphabet | - |
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| (noun) a low triangular area of alluvial deposits where a river divides before entering a larger body of water | - |
| (noun) an object shaped like an equilateral triangle | - |
| deltoid | (noun) a large triangular muscle covering the shoulder joint and serving to abduct and flex and extend and rotate the arm | Synonyms: deltoid muscle, musculus deltoideus |
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| deviltry | (noun) wicked and cruel behavior | Synonyms: devilry |
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| (noun) reckless or malicious behavior that causes discomfort or annoyance in others | Synonyms: devilment, devilry, mischief-making, mischief, mischievousness, rascality, roguery, roguishness, shenanigan |
| dichlorodiphenyltrichloroethane | (noun) an insecticide that is also toxic to animals and humans; banned in the United States since 1972 | Synonyms: DDT |
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| difficultness | (noun) the quality of being almost beyond one's ability to deal with and requiring a great effort to achieve a positive result | Synonyms: difficulty |
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