| authoriser | (noun) an authority who authorizes (people or actions) | Synonyms: authorizer |
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| authoritarian | (noun) a person who behaves in a tyrannical manner | Synonyms: dictator |
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| authoritarianism | (noun) a form of government in which the ruler is an absolute dictator (not restricted by a constitution or laws or opposition etc.) | Synonyms: absolutism, Caesarism, despotism, dictatorship, monocracy, one-man rule, shogunate, Stalinism, totalitarianism, tyranny |
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| authorities | (noun) the organization that is the governing authority of a political unit | Synonyms: government, regime |
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| authority | (noun) the power or right to give orders or make decisions | Synonyms: authorisation, authorization, dominance, potency, say-so |
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| (noun) official permission or approval | Synonyms: authorisation, authorization, sanction |
| (noun) freedom from doubt; belief in yourself and your abilities | Synonyms: assurance, confidence, self-assurance, self-confidence, sureness |
| (noun) an authoritative written work | - |
| (noun) an administrative unit of government | Synonyms: agency, bureau, federal agency, government agency, office |
| (noun) an expert whose views are taken as definitive | - |
| (noun) (usually plural) persons who exercise (administrative) control over others | - |
| authorization | (noun) the act of conferring legality or sanction or formal warrant | Synonyms: authorisation, empowerment |
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| (noun) the power or right to give orders or make decisions | Synonyms: authorisation, authority, dominance, potency, say-so |
| (noun) official permission or approval | Synonyms: authorisation, authority, sanction |
| (noun) a document giving an official instruction or command | Synonyms: authorisation, mandate |
| authorizer | (noun) an authority who authorizes (people or actions) | Synonyms: authoriser |
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| avarice | (noun) reprehensible acquisitiveness; insatiable desire for wealth (personified as one of the deadly sins) | Synonyms: avaritia, covetousness, greed, rapacity |
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| (noun) extreme greed for material wealth | Synonyms: avariciousness, covetousness, cupidity |
| avariciousness | (noun) extreme greed for material wealth | Synonyms: avarice, covetousness, cupidity |
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| avaritia | (noun) reprehensible acquisitiveness; insatiable desire for wealth (personified as one of the deadly sins) | Synonyms: avarice, covetousness, greed, rapacity |
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| aventurine | (noun) a translucent quartz spangled with bits of mica or other minerals | Synonyms: sunstone |
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| aviatrix | (noun) a woman aviator | Synonyms: airwoman, aviatress |
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| azathioprine | (noun) an immunosuppressive drug (trade name Imuran) used to prevent rejection of a transplanted organ | Synonyms: Imuran |
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| azoturia | (noun) excess of urea in the urine | - |
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| azurite | (noun) blue carbonate of copper; blue malachite | - |
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| bacteria | (noun) (microbiology) single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission; important as pathogens and for biochemical properties; taxonomy is difficult; often considered to be plants | Synonyms: bacterium |
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| bacteriacide | (noun) any chemical agent that destroys bacteria | Synonyms: bactericide |
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| bacteriaemia | (noun) transient presence of bacteria (or other microorganisms) in the blood | Synonyms: bacteremia, bacteriemia |
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| bactericide | (noun) any drug that destroys bacteria or inhibits their growth | Synonyms: antibacterial, antibacterial drug |
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| (noun) any chemical agent that destroys bacteria | Synonyms: bacteriacide |
| bacteriemia | (noun) transient presence of bacteria (or other microorganisms) in the blood | Synonyms: bacteremia, bacteriaemia |
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| bacteriochlorophyll | (noun) a substance in photosensitive bacteria that is related to but different from chlorophyll of higher plants | - |
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| bacteriologist | (noun) a biologist who studies bacteria | - |
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| bacteriology | (noun) the branch of medical science that studies bacteria in relation to disease | - |
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| bacteriolysis | (noun) dissolution or destruction of bacteria | - |
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| bacteriophage | (noun) a virus that is parasitic (reproduces itself) in bacteria | Synonyms: phage |
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| bacteriostasis | (noun) inhibition of the growth of bacteria | - |
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| bacteriostat | (noun) a chemical or biological material that inhibits bacterial growth | - |
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| bacterium | (noun) (microbiology) single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission; important as pathogens and for biochemical properties; taxonomy is difficult; often considered to be plants | Synonyms: bacteria |
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| badgering | (noun) the act of harassing someone | Synonyms: bedevilment, torment, worrying |
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| balbriggan | (noun) a cotton knit fabric used for underwear | - |
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| baldric | (noun) a wide (ornamented) belt worn over the right shoulder to support a sword or bugle by the left hip | Synonyms: baldrick |
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| baldrick | (noun) a wide (ornamented) belt worn over the right shoulder to support a sword or bugle by the left hip | Synonyms: baldric |
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| ballerina | (noun) a female ballet dancer | Synonyms: danseuse |
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| banderilla | (noun) a decorated dart that is implanted in the neck or shoulders of the bull during a bull fight | - |
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| banderillero | (noun) the bullfighter who implants decorated darts (banderillas) into the neck or shoulders of the bull during a bull fight | - |
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| barbarian | (noun) a member of an uncivilized people | Synonyms: savage |
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| (noun) a crude uncouth ill-bred person lacking culture or refinement | Synonyms: boor, churl, Goth, peasant, tike, tyke |
| barbarisation | (noun) an act that makes people primitive and uncivilized | Synonyms: barbarization |
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| barbarism | (noun) a brutal barbarous savage act | Synonyms: barbarity, brutality, savagery |
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| barbarity | (noun) a brutal barbarous savage act | Synonyms: barbarism, brutality, savagery |
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| (noun) the quality of being shockingly cruel and inhumane | Synonyms: atrociousness, atrocity, barbarousness, heinousness |
| barbarization | (noun) an act that makes people primitive and uncivilized | Synonyms: barbarisation |
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| barilla | (noun) Algerian plant formerly burned to obtain calcium carbonate | Synonyms: Halogeton souda |
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| (noun) bushy plant of Old World salt marshes and sea beaches having prickly leaves; burned to produce a crude soda ash | Synonyms: glasswort, kali, kelpwort, Salsola kali, Salsola soda, saltwort |
| baring | (noun) the removal of covering | Synonyms: denudation, husking, stripping, uncovering |
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| barite | (noun) a white or colorless mineral (BaSO4); the main source of barium | Synonyms: barium sulphate, barytes, heavy spar |
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| baritone | (noun) the second lowest brass wind instrument | Synonyms: baritone horn |
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| (noun) the second lowest adult male singing voice | Synonyms: baritone voice |
| (noun) a male singer | Synonyms: barytone |
| barium | (noun) a soft silvery metallic element of the alkali earth group; found in barite | Synonyms: atomic number 56, Ba |
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| barricade | (noun) a barrier set up by police to stop traffic on a street or road in order to catch a fugitive or inspect traffic etc. | Synonyms: roadblock |
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| (noun) a barrier (usually thrown up hastily) to impede the advance of an enemy | - |
| barrier | (noun) a structure or object that impedes free movement | - |
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| (noun) any condition that makes it difficult to make progress or to achieve an objective | Synonyms: roadblock |
| (noun) anything serving to maintain separation by obstructing vision or access | - |
| barring | (noun) the act of excluding someone by a negative vote or veto | Synonyms: blackball |
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| barrio | (noun) an urban area in a Spanish-speaking country | - |
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| (noun) a Spanish-speaking quarter in a town or city (especially in the United States) | - |
| barrister | (noun) a British or Canadian lawyer who speaks in the higher courts of law on behalf of either the defense or prosecution | - |
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| bassarisk | (noun) raccoon-like omnivorous mammal of Mexico and the southwestern United States having a long bushy tail with black and white rings | Synonyms: Bassariscus astutus, cacomistle, cacomixle, civet cat, coon cat, miner's cat, raccoon fox, ring-tailed cat, ringtail |
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| battering | (noun) the act of subjecting to strong attack | Synonyms: banging |
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| bearing | (noun) a rotating support placed between moving parts to allow them to move easily | - |
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| (noun) heraldry consisting of a design or image depicted on a shield | Synonyms: armorial bearing, charge, heraldic bearing |
| (noun) dignified manner or conduct | Synonyms: comportment, mien, presence |
| (noun) characteristic way of bearing one's body | Synonyms: carriage, posture |
| (noun) the direction or path along which something moves or along which it lies | Synonyms: aim, heading |
| (noun) relevant relation or interconnection | - |
| bedspring | (noun) (usually in the plural) one of the springs holding up the mattress of a bed | - |
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| behaviorism | (noun) an approach to psychology that emphasizes observable measurable behavior | Synonyms: behavioristic psychology, behaviourism, behaviouristic psychology |
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| behaviorist | (noun) a psychologist who subscribes to behaviorism | Synonyms: behaviourist |
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| behaviourism | (noun) an approach to psychology that emphasizes observable measurable behavior | Synonyms: behaviorism, behavioristic psychology, behaviouristic psychology |
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| behaviourist | (noun) a psychologist who subscribes to behaviorism | Synonyms: behaviorist |
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| beleaguering | (noun) the action of an armed force that surrounds a fortified place and isolates it while continuing to attack | Synonyms: besieging, military blockade, siege |
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| beriberi | (noun) avitaminosis caused by lack of thiamine (vitamin B1) | - |
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| bichloride | (noun) a compound containing two chlorine atoms per molecule | Synonyms: dichloride |
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| bickering | (noun) a quarrel about petty points | Synonyms: bicker, fuss, pettifoggery, spat, squabble, tiff |
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| bioelectricity | (noun) electric phenomena in animals or plants | - |
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| bioengineering | (noun) the branch of engineering science in which biological science is used to study the relation between workers and their environments | Synonyms: biotechnology, ergonomics |
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| biometrics | (noun) a branch of biology that studies biological phenomena and observations by means of statistical analysis | Synonyms: biometry, biostatistics |
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| bioterrorism | (noun) terrorism using the weapons of biological warfare | Synonyms: biological terrorism |
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| biprism | (noun) an optical device for obtaining interference fringes | - |
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| birefringence | (noun) splitting a ray into two parallel rays polarized perpendicularly | Synonyms: double refraction |
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| biriani | (noun) an Indian dish made with highly seasoned rice and meat or fish or vegetables | Synonyms: biryani |
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| birthright | (noun) a right or privilege that you are entitled to at birth | - |
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| (noun) an inheritance coming by right of birth (especially by primogeniture) | Synonyms: patrimony |
| bishopric | (noun) the territorial jurisdiction of a bishop | Synonyms: diocese, episcopate |
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| blaring | (noun) a loud harsh or strident noise | Synonyms: blare, cacophony, clamor, din |
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| blepharism | (noun) condition in which a person blinks continuously | - |
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| blepharitis | (noun) inflammation of the eyelids characterized by redness and swelling and dried crusts | - |
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| blistering | (noun) the formation of vesicles in or beneath the skin | Synonyms: vesication, vesiculation |
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| blitzkrieg | (noun) a swift and violent military offensive with intensive aerial bombardment | Synonyms: blitz |
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| blueprint | (noun) photographic print of plans or technical drawings etc. | - |
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| (noun) something intended as a guide for making something else | Synonyms: design, pattern |
| blurriness | (noun) the quality of being indistinct and without sharp outlines | Synonyms: fogginess, fuzziness, indistinctness, softness |
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| bohrium | (noun) a transuranic element with atomic number 107 | Synonyms: atomic number 107, Bh, element 107 |
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| boorishness | (noun) inelegance by virtue of being an uncouth boor | Synonyms: uncouthness |
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| (noun) the manner of a rude or insensitive person | - |
| boring | (noun) the act of drilling a hole in the earth in the hope of producing petroleum | Synonyms: drilling, oil production |
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| (noun) the act of drilling | Synonyms: drilling |
| boringness | (noun) extreme dullness; lacking spirit or interest | Synonyms: dreariness, insipidity, insipidness |
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| bowdlerisation | (noun) the act of deleting or modifying all passages considered to be indecent | Synonyms: bowdlerization |
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| (noun) written material that has been bowdlerized | Synonyms: bowdlerization |
| bowdleriser | (noun) a person who edits a text by removing obscene or offensive words or passages | Synonyms: bowdlerizer, expurgator |
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| bowdlerization | (noun) the act of deleting or modifying all passages considered to be indecent | Synonyms: bowdlerisation |
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| (noun) written material that has been bowdlerized | Synonyms: bowdlerisation |
| bowdlerizer | (noun) a person who edits a text by removing obscene or offensive words or passages | Synonyms: bowdleriser, expurgator |
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| bowsprit | (noun) a spar projecting from the bow of a vessel | - |
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| bowstring | (noun) the string of an archer's bow | - |
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| boyfriend | (noun) a man who is the lover of a man or woman | Synonyms: beau, fellow, swain |
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| brasserie | (noun) a small restaurant serving beer and wine as well as food; usually cheap | - |
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| briar | (noun) a pipe made from the root (briarroot) of the tree heath | Synonyms: briar pipe |
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| (noun) evergreen treelike Mediterranean shrub having fragrant white flowers in large terminal panicles and hard woody roots used to make tobacco pipes | Synonyms: brier, Erica arborea, tree heath |
| (noun) a very prickly woody vine of the eastern United States growing in tangled masses having tough round stems with shiny leathery leaves and small greenish flowers followed by clusters of inedible shiny black berries | Synonyms: brier, bullbrier, catbrier, greenbrier, horse-brier, horse brier, Smilax rotundifolia |
| (noun) Eurasian rose with prickly stems and fragrant leaves and bright pink flowers followed by scarlet hips | Synonyms: brier, eglantine, Rosa eglanteria, sweetbriar, sweetbrier |
| briard | (noun) old French breed of large strong usually black dogs having a long tail and long wavy and slightly stiff coat | - |
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| briarroot | (noun) hard woody root of the briar Erica arborea | - |
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| briarwood | (noun) wood from the hard woody root of the briar Erica arborea; used to make tobacco pipes | Synonyms: brier-wood, brierwood |
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| bribe | (noun) payment made to a person in a position of trust to corrupt his judgment | Synonyms: payoff |
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| briber | (noun) someone who pays (or otherwise incites) you to commit a wrongful act | Synonyms: suborner |
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| bribery | (noun) the practice of offering something (usually money) in order to gain an illicit advantage | Synonyms: graft |
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| brick | (noun) rectangular block of clay baked by the sun or in a kiln; used as a building or paving material | - |
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| (noun) a good fellow; helpful and trustworthy | - |
| brickbat | (noun) blunt criticism | - |
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| (noun) a fragment of brick used as a weapon | - |
| brickfield | (noun) a place where bricks are made and sold | Synonyms: brickyard |
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