| denier | (noun) any of various former European coins of different denominations | - |
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| (noun) a unit of measurement for the fineness of silk or nylon or rayon | - |
| (noun) one who denies | - |
| derriere | (noun) the fleshy part of the human body that you sit on | Synonyms: arse, ass, backside, behind, bottom, bum, buns, butt, buttocks, can, fanny, fundament, hind end, hindquarters, keister, nates, posterior, prat, rear, rear end, rump, seat, stern, tail, tail end, tooshie, tush |
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| dickie | (noun) a man's detachable insert (usually starched) to simulate the front of a shirt | Synonyms: dickey, dicky, shirtfront |
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| (noun) a small third seat in the back of an old-fashioned two-seater | Synonyms: dickey-seat, dickey, dickie-seat, dicky-seat, dicky |
| die | (noun) a small cube with 1 to 6 spots on the six faces; used in gambling to generate random numbers | Synonyms: dice |
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| (noun) a device used for shaping metal | - |
| (noun) a cutting tool that is fitted into a diestock and used for cutting male (external) screw threads on screws or bolts or pipes or rods | - |
| dieback | (noun) a disease of plants characterized by the gradual dying of the young shoots starting at the tips and progressing to the larger branches | - |
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| diehard | (noun) one who adheres to traditional views | Synonyms: traditionalist |
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| dielectric | (noun) a material such as glass or porcelain with negligible electrical or thermal conductivity | Synonyms: insulator, nonconductor |
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| dielectrolysis | (noun) the motion of charged particles in a colloid under the influence of an electric field; particles with a positive charge go to the cathode and negative to the anode | Synonyms: cataphoresis, electrophoresis, ionophoresis |
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| diemaker | (noun) someone who makes dies | Synonyms: die-sinker, diesinker |
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| diencephalon | (noun) the posterior division of the forebrain; connects the cerebral hemispheres with the mesencephalon | Synonyms: betweenbrain, interbrain, thalmencephalon |
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| dieresis | (noun) a diacritical mark (two dots) placed over a vowel to indicate that it does not form a diphthong with an adjacent vowel | Synonyms: diaeresis |
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| diesel | (noun) an internal-combustion engine that burns heavy oil | Synonyms: diesel engine, diesel motor |
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| diesinker | (noun) someone who makes dies | Synonyms: die-sinker, diemaker |
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| diesis | (noun) a character used in printing to indicate a third cross reference or footnote after the asterisk and the dagger have been used | Synonyms: double dagger, double obelisk |
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| diestock | (noun) a device that holds the dies that cut external threads on metal cylinders | - |
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| diestrum | (noun) (of animals having several estrous cycles in one breeding season) a state or interval of sexual inactivity or quiescence between periods of activity | Synonyms: diestrus |
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| diestrus | (noun) (of animals having several estrous cycles in one breeding season) a state or interval of sexual inactivity or quiescence between periods of activity | Synonyms: diestrum |
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| diet | (noun) the act of restricting your food intake (or your intake of particular foods) | Synonyms: dieting |
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| (noun) a prescribed selection of foods | - |
| (noun) the usual food and drink consumed by an organism (person or animal) | - |
| (noun) a legislative assembly in certain countries (e.g., Japan) | - |
| dietary | (noun) a regulated daily food allowance | - |
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| dieter | (noun) a person who diets | - |
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| dietetics | (noun) the scientific study of food preparation and intake | - |
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| diethylmalonylurea | (noun) a barbiturate used as a hypnotic | Synonyms: barbital, barbitone, diethylbarbituric acid, veronal |
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| diethylstilbesterol | (noun) synthetic nonsteroid with the properties of estrogen; formerly used to treat menstrual problems but was found to be associated with vaginal cancers in the daughters of women so treated during pregnancy | Synonyms: DES, stilbesterol |
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| diethylstilbestrol | (noun) a potent estrogen used in medicine and in feed for livestock and poultry | Synonyms: DES, diethylstilboestrol, stilbestrol, stilboestrol |
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| diethylstilboestrol | (noun) a potent estrogen used in medicine and in feed for livestock and poultry | Synonyms: DES, diethylstilbestrol, stilbestrol, stilboestrol |
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| dietician | (noun) a specialist in the study of diet and nutrition | Synonyms: dietitian |
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| dieting | (noun) the act of restricting your food intake (or your intake of particular foods) | Synonyms: diet |
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| dietitian | (noun) a specialist in the study of diet and nutrition | Synonyms: dietician |
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| dillydallier | (noun) someone who wastes time | Synonyms: dallier, dilly-dallier, lounger, mope |
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| disbelief | (noun) doubt about the truth of something | Synonyms: incredulity, mental rejection, scepticism, skepticism |
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| (noun) a rejection of belief | Synonyms: unbelief |
| disobedience | (noun) the failure to obey | Synonyms: noncompliance |
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| (noun) the trait of being unwilling to obey | - |
| disorientation | (noun) a wild delusion (especially one induced by a hallucinogenic drug) | Synonyms: freak out |
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| (noun) confusion (usually transient) about where you are and how to proceed; uncertainty as to direction | - |
| disquiet | (noun) the trait of seeming ill at ease | Synonyms: unease, uneasiness |
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| (noun) a feeling of mild anxiety about possible developments | Synonyms: anxiousness |
| disquietude | (noun) feelings of anxiety that make you tense and irritable | Synonyms: edginess, inquietude, uneasiness |
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| dissilience | (noun) the emergence of seeds as seed pods burst open when they are ripe | - |
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| dixie | (noun) a large metal pot (12 gallon camp kettle) for cooking; used in military camps | - |
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| doggie | (noun) informal terms for dogs | Synonyms: barker, bow-wow, doggy, pooch |
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| dogie | (noun) motherless calf in a range herd of cattle | Synonyms: dogy, leppy |
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| dominie | (noun) a clergyman; especially a settled minister or parson | Synonyms: domine, dominee, dominus |
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| dossier | (noun) a collection of papers containing detailed information about a particular person or subject (usually a person's record) | - |
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| dovekie | (noun) small short-billed auk abundant in Arctic regions | Synonyms: little auk, Plautus alle |
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| drier | (noun) an appliance that removes moisture | Synonyms: dryer |
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| (noun) a substance that promotes drying (e.g., calcium oxide absorbs water and is used to remove moisture) | Synonyms: desiccant, drying agent, siccative |
| dubiety | (noun) the state of being unsure of something | Synonyms: doubt, doubtfulness, dubiousness, incertitude, uncertainty |
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| earpiece | (noun) electro-acoustic transducer for converting electric signals into sounds; it is held over or inserted into the ear | Synonyms: earphone, headphone, phone |
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| ebullience | (noun) overflowing with eager enjoyment or approval | Synonyms: enthusiasm, exuberance |
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| efficiency | (noun) skillfulness in avoiding wasted time and effort | - |
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| (noun) the ratio of the output to the input of any system | - |
| eighties | (noun) the time of life between 80 and 90 | Synonyms: mid-eighties |
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| (noun) the decade from 1980 to 1989 | Synonyms: 1980s |
| (noun) the decade from 1880 to 1889 | Synonyms: 1880s |
| eightieth | (noun) position 80 in a countable series of things | - |
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| emollient | (noun) toiletry consisting of any of various substances in the form of a thick liquid that have a soothing and moisturizing effect when applied to the skin | Synonyms: cream, ointment |
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| emulsifier | (noun) a surface-active agent that promotes the formation of an emulsion | - |
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| epauliere | (noun) armor plate that protects the shoulder | - |
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| erythropoiesis | (noun) the process of producing red blood cells by the stem cells in the bone marrow | - |
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| erythropoietin | (noun) a glycoprotein secreted by the kidneys that stimulates the production of red blood cells | - |
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| espalier | (noun) a trellis on which ornamental shrub or fruit tree is trained to grow flat | - |
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| esurience | (noun) extreme gluttony | Synonyms: edacity, rapaciousness, rapacity, voraciousness, voracity |
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| (noun) excessive desire to eat | Synonyms: edacity, ravenousness, voraciousness, voracity |
| expedience | (noun) the quality of being suited to the end in view | Synonyms: expediency |
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| (noun) taking advantage of opportunities without regard for the consequences for others | Synonyms: opportunism, self-interest, self-seeking |
| expediency | (noun) the quality of being suited to the end in view | Synonyms: expedience |
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| expedient | (noun) a means to an end; not necessarily a principled or ethical one | - |
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| experience | (noun) the content of direct observation or participation in an event | - |
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| (noun) the accumulation of knowledge or skill that results from direct participation in events or activities | - |
| (noun) an event as apprehended | - |
| eyepiece | (noun) combination of lenses at the viewing end of optical instruments | Synonyms: ocular |
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| eyrie | (noun) any habitation at a high altitude | Synonyms: aerie, aery, eyry |
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| (noun) the lofty nest of a bird of prey (such as a hawk or eagle) | Synonyms: aerie, aery, eyry |
| faerie | (noun) the enchanted realm of fairies | Synonyms: faery, fairyland |
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| (noun) a small being, human in form, playful and having magical powers | Synonyms: faery, fairy, fay, sprite |
| faience | (noun) glazed earthenware decorated with opaque colors | - |
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| falsie | (noun) padding that is worn inside a brassiere | - |
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| (noun) artificial eyelashes | - |
| falsifier | (noun) someone who falsifies | - |
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| fancier | (noun) a person having a strong liking for something | Synonyms: enthusiast |
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| farrier | (noun) a person who shoes horses | Synonyms: horseshoer |
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| fief | (noun) a piece of land held under the feudal system | Synonyms: feoff |
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| fiefdom | (noun) an organization that is controlled by a dominant person or group | - |
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| (noun) the domain controlled by a feudal lord | - |
| field | (noun) a particular kind of commercial enterprise | Synonyms: field of operation, line of business |
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| (noun) a place where planes take off and land | Synonyms: airfield, flying field, landing field |
| (noun) a branch of knowledge | Synonyms: bailiwick, discipline, field of study, study, subject, subject area, subject field |
| (noun) the area that is visible (as through an optical instrument) | Synonyms: field of view |
| (noun) (mathematics) a set of elements such that addition and multiplication are commutative and associative and multiplication is distributive over addition and there are two elements 0 and 1 | - |
| (noun) all of the horses in a particular horse race | - |
| (noun) all the competitors in a particular contest or sporting event | - |
| (noun) (computer science) a set of one or more adjacent characters comprising a unit of information | - |
| (noun) a piece of land cleared of trees and usually enclosed | - |
| (noun) somewhere (away from a studio or office or library or laboratory) where practical work is done or data is collected | - |
| (noun) a piece of land prepared for playing a game | Synonyms: athletic field, playing area, playing field |
| (noun) a region in which active military operations are in progress | Synonyms: field of operations, theater, theater of operations, theatre, theatre of operations |
| (noun) a region where a battle is being (or has been) fought | Synonyms: battlefield, battleground, field of battle, field of honor |
| (noun) a geographic region (land or sea) under which something valuable is found | - |
| (noun) extensive tract of level open land | Synonyms: champaign, plain |
| (noun) the space around a radiating body within which its electromagnetic oscillations can exert force on another similar body not in contact with it | Synonyms: field of force, force field |
| (noun) a particular environment or walk of life | Synonyms: area, arena, domain, orbit, sphere |
| fielder | (noun) a member of the baseball team that is in the field instead of at bat | - |
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| (noun) a member of the cricket team that is fielding rather than batting | Synonyms: fieldsman |
| fieldfare | (noun) medium-sized Eurasian thrush seen chiefly in winter | Synonyms: snowbird, Turdus pilaris |
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| fieldhand | (noun) a hired hand on a farm | Synonyms: farm worker, farmhand, field hand |
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| fielding | (noun) (baseball) handling the ball while playing in the field | - |
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| fieldmouse | (noun) any nocturnal Old World mouse of the genus Apodemus inhabiting woods and fields and gardens | Synonyms: field mouse |
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| fieldsman | (noun) a member of the cricket team that is fielding rather than batting | Synonyms: fielder |
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| fieldstone | (noun) stone that occurs naturally in fields; often used as building material | - |
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| fieldwork | (noun) a temporary fortification built by troops in the field | - |
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| fieldworker | (noun) a researcher who works in the field | - |
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| fiend | (noun) a cruel wicked and inhuman person | Synonyms: demon, devil, monster, ogre |
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| (noun) a person motivated by irrational enthusiasm (as for a cause) | Synonyms: fanatic |
| (noun) an evil supernatural being | Synonyms: daemon, daimon, demon, devil |
| fierceness | (noun) the property of being wild or turbulent | Synonyms: ferocity, furiousness, fury, vehemence, violence, wildness |
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| fieriness | (noun) the heat or the color of fire | Synonyms: red heat |
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| (noun) a passionate and quick-tempered nature | - |
| fiesta | (noun) an elaborate party (often outdoors) | Synonyms: feast, fete |
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| fifties | (noun) the time of life between 50 and 60 | Synonyms: mid-fifties |
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| (noun) the decade from 1950 to 1959 | Synonyms: 1950s |
| fiftieth | (noun) position 50 in a countable series of things | - |
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| financier | (noun) a person skilled in large scale financial transactions | Synonyms: moneyman |
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| flier | (noun) an advertisement (usually printed on a page or in a leaflet) intended for wide distribution | Synonyms: bill, broadsheet, broadside, circular, flyer, handbill, throwaway |
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| (noun) someone who travels by air | Synonyms: flyer |
| (noun) someone who operates an aircraft | Synonyms: aeronaut, aviator, flyer |
| flies | (noun) (theater) the space over the stage (out of view of the audience) used to store scenery (drop curtains) | - |
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| floozie | (noun) a prostitute who attracts customers by walking the streets | Synonyms: floozy, hooker, hustler, slattern, street girl, streetwalker |
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| folie | (noun) (psychiatry) a psychological disorder of thought or emotion; a more neutral term than mental illness | Synonyms: disturbance, mental disorder, mental disturbance, psychological disorder |
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| follies | (noun) a revue with elaborate costuming | - |
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| foodie | (noun) a person devoted to refined sensuous enjoyment (especially good food and drink) | Synonyms: bon vivant, epicure, epicurean, gastronome, gourmet |
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| forestiera | (noun) any plant of the genus Forestiera | - |
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| formalities | (noun) a requirement of etiquette or custom | Synonyms: formality |
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| forties | (noun) the time of life between 40 and 50 | Synonyms: mid-forties |
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| (noun) the decade from 1940 to 1949 | Synonyms: 1940s |
| fortieth | (noun) position 40 in a countable series of things | - |
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| freebie | (noun) something that is free (usually provided as part of a promotional scheme) | Synonyms: freebee |
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| friedcake | (noun) small cake in the form of a ring or twist or ball or strip fried in deep fat | - |
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| friend | (noun) a person you know well and regard with affection and trust | - |
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| (noun) a person with whom you are acquainted | Synonyms: acquaintance |
| (noun) an associate who provides cooperation or assistance | Synonyms: ally |
| (noun) a person who backs a politician or a team etc. | Synonyms: admirer, booster, champion, protagonist, supporter |
| friendlessness | (noun) being without friends | - |
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