| accoutrement | (noun) clothing that is worn or carried, but not part of your main clothing | Synonyms: accessory, accouterment |
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| actress | (noun) a female actor | - |
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| airstream | (noun) a relatively well-defined prevailing wind | - |
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| (noun) the flow of air that is driven backwards by an aircraft propeller | Synonyms: backwash, race, slipstream, wash |
| amphitheatre | (noun) an oval large stadium with tiers of seats; an arena in which contests and spectacles are held | Synonyms: amphitheater, coliseum |
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| (noun) a sloping gallery with seats for spectators (as in an operating room or theater) | Synonyms: amphitheater |
| ancestress | (noun) a woman ancestor | - |
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| arbitrement | (noun) the act of deciding as an arbiter; giving authoritative judgment | Synonyms: arbitrament, arbitration |
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| atresia | (noun) an abnormal condition in which a normal opening or tube in the body (as the urethra) is closed or absent | - |
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| aviatress | (noun) a woman aviator | Synonyms: airwoman, aviatrix |
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| axletree | (noun) a dead axle on a carriage or wagon that has terminal spindles on which the wheels revolve | - |
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| aztreonam | (noun) an antibiotic (trade name Azactam) used against severe infections; has minimal side effects | Synonyms: Azactam |
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| benefactress | (noun) a woman benefactor | - |
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| bistre | (noun) a water-soluble brownish-yellow pigment made by boiling wood soot | Synonyms: bister |
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| bloodstream | (noun) the blood flowing through the circulatory system | Synonyms: blood stream |
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| bourtree | (noun) a common shrub with black fruit or a small tree of Europe and Asia; fruit used for wines and jellies | Synonyms: black elder, common elder, elderberry, European elder, Sambucus nigra |
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| buttress | (noun) a support usually of stone or brick; supports the wall of a building | Synonyms: buttressing |
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| buttressing | (noun) a support usually of stone or brick; supports the wall of a building | Synonyms: buttress |
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| cadastre | (noun) a public register showing the details of ownership and value of land; made for the purpose of taxation | Synonyms: cadaster |
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| centilitre | (noun) a metric unit of volume equal to one hundredth of a liter | Synonyms: centiliter, cl |
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| centimetre | (noun) a metric unit of length equal to one hundredth of a meter | Synonyms: centimeter, cm |
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| centre | (noun) a position on a basketball team of the player who participates in the jump that starts the game | Synonyms: center |
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| (noun) (American football) the position of the player on the line of scrimmage who puts the ball in play | Synonyms: center |
| (noun) the position on a hockey team of the player who participates in the face off at the beginning of the game | Synonyms: center |
| (noun) a building dedicated to a particular activity | Synonyms: center |
| (noun) the piece of ground in the outfield directly ahead of the catcher | Synonyms: center, center field, centerfield |
| (noun) mercantile establishment consisting of a carefully landscaped complex of shops representing leading merchandisers; usually includes restaurants and a convenient parking area; a modern version of the traditional marketplace | Synonyms: center, mall, plaza, shopping center, shopping centre, shopping mall |
| (noun) a cluster of nerve cells governing a specific bodily process | Synonyms: center, nerve center, nerve centre |
| (noun) the choicest or most essential or most vital part of some idea or experience | Synonyms: center, core, essence, gist, heart, heart and soul, inwardness, kernel, marrow, meat, nitty-gritty, nub, pith, substance, sum |
| (noun) the object upon which interest and attention focuses | Synonyms: center, center of attention, centre of attention |
| (noun) the sweet central portion of a piece of candy that is enclosed in chocolate or some other covering | Synonyms: center |
| (noun) politically moderate persons; centrists | Synonyms: center |
| (noun) the middle of a military or naval formation | Synonyms: center |
| (noun) a point equidistant from the ends of a line or the extremities of a figure | Synonyms: center, midpoint |
| (noun) an area that is approximately central within some larger region | Synonyms: center, eye, heart, middle |
| (noun) a place where some particular activity is concentrated | Synonyms: center |
| (noun) (football) the person who plays center on the line of scrimmage and snaps the ball to the quarterback | Synonyms: center, snapper |
| (noun) (basketball) the person who plays center on a basketball team | Synonyms: center |
| (noun) (ice hockey) the person who plays center on a hockey team | Synonyms: center |
| centreboard | (noun) a retractable fin keel used on sailboats to prevent drifting to leeward | Synonyms: centerboard, drop keel, sliding keel |
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| centrefold | (noun) a magazine center spread; especially a foldout of a large photograph or map or other feature | Synonyms: centerfold |
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| centrepiece | (noun) something placed at the center of something else (as on a table) | Synonyms: centerpiece |
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| (noun) the central or most important feature | Synonyms: centerpiece |
| centrex | (noun) (CENTRal EXchange) a kind of telephone exchange | - |
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| chartreuse | (noun) a shade of green tinged with yellow | Synonyms: Paris green, pea green, yellow green, yellowish green |
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| conductress | (noun) a woman conductor | - |
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| contredanse | (noun) a type of folk dance in which couples are arranged in sets or face one another in a line | Synonyms: contra danse, contradance, country-dance, country dancing |
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| contretemps | (noun) an awkward clash | - |
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| decalitre | (noun) a metric unit of volume or capacity equal to 10 liters | Synonyms: dal, decaliter, dekaliter, dekalitre, dkl |
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| decametre | (noun) a metric unit of length equal to ten meters | Synonyms: dam, decameter, dekameter, dekametre, dkm |
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| decilitre | (noun) a metric unit of volume equal to one tenth of a liter | Synonyms: deciliter, dl |
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| decimetre | (noun) a metric unit of length equal to one tenth of a meter | Synonyms: decimeter, dm |
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| dekalitre | (noun) a metric unit of volume or capacity equal to 10 liters | Synonyms: dal, decaliter, decalitre, dekaliter, dkl |
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| dekametre | (noun) a metric unit of length equal to ten meters | Synonyms: dam, decameter, decametre, dekameter, dkm |
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| dihydrostreptomycin | (noun) antibiotic consisting of a hydrogenated form of streptomycin; used against tuberculosis and tularemia and Gram-negative organisms | - |
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| dioptre | (noun) a unit of measurement of the refractive power of a lens which is equal to the reciprocal of the focal length measured in meters; used by oculists | Synonyms: diopter |
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| distress | (noun) the seizure and holding of property as security for payment of a debt or satisfaction of a claim | Synonyms: distraint |
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| (noun) psychological suffering | Synonyms: hurt, suffering |
| (noun) extreme physical pain | - |
| (noun) a state of adversity (danger or affliction or need) | - |
| distressfulness | (noun) the quality of arousing fear or distress | Synonyms: seriousness |
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| distressingness | (noun) the quality of being painful | Synonyms: painfulness |
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| dotrel | (noun) rare plover of upland areas of Eurasia | Synonyms: Charadrius morinellus, dotterel, Eudromias morinellus |
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| doubletree | (noun) a crossbar on a wagon or carriage to which two whiffletrees are attached in order to harness two horses abreast | - |
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| enchantress | (noun) a female sorcerer or magician | Synonyms: witch |
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| (noun) a woman who is considered to be dangerously seductive | Synonyms: Delilah, femme fatale, siren, temptress |
| entreaty | (noun) earnest or urgent request | Synonyms: appeal, prayer |
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| entrecote | (noun) cut of meat taken from between the ribs | - |
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| entree | (noun) an entrance, especially a theatrical entrance onto a stage or as if onto a stage | - |
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| (noun) something that provides access (to get in or get out) | Synonyms: entrance, entranceway, entry, entryway |
| (noun) the right to enter | Synonyms: access, accession, admission, admittance |
| (noun) the principal dish of a meal | Synonyms: main course |
| entremets | (noun) a dish that is served with, but is subordinate to, a main course | Synonyms: side dish, side order |
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| entrenchment | (noun) an entrenched fortification; a position protected by trenches | Synonyms: intrenchment |
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| entrepot | (noun) a depository for goods | Synonyms: depot, storage, store, storehouse |
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| (noun) a port where merchandise can be imported and then exported without paying import duties | Synonyms: transshipment center |
| entrepreneur | (noun) someone who organizes a business venture and assumes the risk for it | Synonyms: enterpriser |
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| entresol | (noun) intermediate floor just above the ground floor | Synonyms: mezzanine, mezzanine floor |
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| epicentre | (noun) the point on the Earth's surface directly above the focus of an earthquake | Synonyms: epicenter |
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| eptatretus | (noun) a fossil hagfish of the genus Eptatretus | - |
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| extreme | (noun) the furthest or highest degree of something | - |
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| (noun) the point located farthest from the middle of something | Synonyms: extreme point, extremum |
| extremeness | (noun) the quality of being extreme | - |
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| extremism | (noun) any political theory favoring immoderate uncompromising policies | - |
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| extremist | (noun) a person who holds extreme views | - |
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| extremity | (noun) an external body part that projects from the body | Synonyms: appendage, member |
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| (noun) that part of a limb that is farthest from the torso | - |
| (noun) the outermost or farthest region or point | - |
| (noun) the greatest or utmost degree | - |
| (noun) an extreme condition or state (especially of adversity or disease) | - |
| extremum | (noun) the point located farthest from the middle of something | Synonyms: extreme, extreme point |
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| (noun) the most extreme possible amount or value | Synonyms: peak |
| femtometre | (noun) a metric unit of length equal to one quadrillionth of a meter | Synonyms: femtometer, fermi |
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| footrest | (noun) a low seat or a stool to rest the feet of a seated person | Synonyms: footstool, ottoman, tuffet |
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| fornicatress | (noun) a woman adulterer | Synonyms: adulteress, hussy, jade, loose woman, slut, strumpet, trollop |
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| fortress | (noun) a fortified defensive structure | Synonyms: fort |
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| gastrectomy | (noun) surgical removal of all or part of the stomach | - |
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| goitre | (noun) abnormally enlarged thyroid gland; can result from underproduction or overproduction of hormone or from a deficiency of iodine in the diet | Synonyms: goiter, struma, thyromegaly |
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| hairstreak | (noun) small butterflies having striped markings under the wings | Synonyms: hairstreak butterfly |
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| hatred | (noun) the emotion of intense dislike; a feeling of dislike so strong that it demands action | Synonyms: hate |
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| headmistress | (noun) a woman headmaster | - |
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| headmistressship | (noun) the position of headmistress | - |
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| headstream | (noun) a stream that forms the source of a river | - |
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| hectolitre | (noun) a metric unit of volume or capacity equal to 100 liters | Synonyms: hectoliter, hl |
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| hectometre | (noun) a metric unit of length equal to 100 meters | Synonyms: hectometer, hm |
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| homestretch | (noun) the straight stretch of a racetrack leading to the finish line | - |
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| (noun) the end of an enterprise | - |
| huitre | (noun) edible body of any of numerous oysters | Synonyms: oyster |
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| huntress | (noun) a woman hunter | - |
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| hypernatremia | (noun) excessive amounts of sodium in the blood; possibly indicating diabetes insipidus | - |
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| hyponatremia | (noun) abnormally low level of sodium in the blood; associated with dehydration | - |
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| idolatress | (noun) a woman idolater | - |
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| inheritress | (noun) a female heir | Synonyms: heiress, inheritrix |
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| instructress | (noun) a woman instructor | - |
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| intrenchment | (noun) an entrenched fortification; a position protected by trenches | Synonyms: entrenchment |
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| intrepidity | (noun) resolute courageousness | Synonyms: dauntlessness |
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| jobcentre | (noun) a government office in a town where information about available jobs is displayed and where unemployment benefits are administered | - |
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| kestrel | (noun) small Old World falcon that hovers in the air against a wind | Synonyms: Falco tinnunculus |
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| (noun) small North American falcon | Synonyms: American kestrel, Falco sparverius, sparrow hawk |
| kilolitre | (noun) a metric unit of volume or capacity equal to 1000 liters | Synonyms: cubic meter, cubic metre, kiloliter |
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| kilometre | (noun) a metric unit of length equal to 1000 meters (or 0.621371 miles) | Synonyms: kilometer, klick, km |
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| litre | (noun) a metric unit of capacity, formerly defined as the volume of one kilogram of pure water under standard conditions; now equal to 1,000 cubic centimeters (or approximately 1.75 pints) | Synonyms: cubic decimeter, cubic decimetre, l, liter |
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| lustre | (noun) a surface coating for ceramics or porcelain | Synonyms: luster |
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| (noun) a quality that outshines the usual | Synonyms: brilliancy, luster, splendor, splendour |
| (noun) the visual property of something that shines with reflected light | Synonyms: luster, sheen, shininess |
| lustrelessness | (noun) the property of having little or no contrast; lacking highlights or gloss | Synonyms: flatness, lusterlessness, mat, matt, matte |
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| mainstream | (noun) the prevailing current of thought | - |
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| maltreater | (noun) someone who abuses | Synonyms: abuser |
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| maltreatment | (noun) cruel or inhumane treatment | Synonyms: abuse, ill-treatment, ill-usage |
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| mattress | (noun) a large thick pad filled with resilient material and often incorporating coiled springs, used as a bed or part of a bed | - |
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| metacentre | (noun) (shipbuilding) the point of intersection between two vertical lines, one line through the center of buoyancy of the hull of a ship in equilibrium and the other line through the center of buoyancy of the hull when the ship is inclined to one side; the distance of this intersection above the center of gravity is an indication of the stability of the ship | Synonyms: metacenter |
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| methotrexate | (noun) toxic antimetabolite that limits cellular reproduction by acting as an antagonist to folic acid; used to treat certain cancers and psoriasis and rheumatoid arthritis | Synonyms: amethopterin, methotrexate sodium |
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| metre | (noun) rhythm as given by division into parts of equal duration | Synonyms: meter, time |
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| (noun) (prosody) the accent in a metrical foot of verse | Synonyms: beat, cadence, measure, meter |
| (noun) the basic unit of length adopted under the Systeme International d'Unites (approximately 1.094 yards) | Synonyms: m, meter |
| metrestick | (noun) a rule one meter long (usually marked off in centimeters and millimeters) | Synonyms: meterstick |
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| micrometre | (noun) a metric unit of length equal to one millionth of a meter | Synonyms: micrometer, micron |
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| micromillimetre | (noun) a metric unit of length equal to one billionth of a meter | Synonyms: micromillimeter, millimicron, nanometer, nanometre, nm |
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| midstream | (noun) the middle of a stream | - |
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| millilitre | (noun) a metric unit of volume equal to one thousandth of a liter | Synonyms: cc, cubic centimeter, cubic centimetre, mil, milliliter, ml |
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