| behavior | (noun) manner of acting or controlling yourself | Synonyms: behaviour, conduct, doings |
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| (noun) (psychology) the aggregate of the responses or reactions or movements made by an organism in any situation | Synonyms: behaviour |
| (noun) (behavioral attributes) the way a person behaves toward other people | Synonyms: behaviour, conduct, demeanor, demeanour, deportment |
| (noun) the action or reaction of something (as a machine or substance) under specified circumstances | Synonyms: behaviour |
| behavioral | (adjective) of or relating to behavior | Synonyms: behavioural |
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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 | (adjective) of or relating to behaviorism | Synonyms: behavioristic, behaviourist, behaviouristic |
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| (noun) a psychologist who subscribes to behaviorism | Synonyms: behaviourist |
| behavioristic | (adjective) of or relating to behaviorism | Synonyms: behaviorist, behaviourist, behaviouristic |
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| behaviour | (noun) manner of acting or controlling yourself | Synonyms: behavior, conduct, doings |
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| (noun) (psychology) the aggregate of the responses or reactions or movements made by an organism in any situation | Synonyms: behavior |
| (noun) (behavioral attributes) the way a person behaves toward other people | Synonyms: behavior, conduct, demeanor, demeanour, deportment |
| (noun) the action or reaction of something (as a machine or substance) under specified circumstances | Synonyms: behavior |
| behavioural | (adjective) of or relating to behavior | Synonyms: behavioral |
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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 | (adjective) of or relating to behaviorism | Synonyms: behaviorist, behavioristic, behaviouristic |
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| (noun) a psychologist who subscribes to behaviorism | Synonyms: behaviorist |
| behaviouristic | (adjective) of or relating to behaviorism | Synonyms: behaviorist, behavioristic, behaviourist |
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| bereave | (verb) deprive through death | - |
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| bereaved | (adjective) sorrowful through loss or deprivation | Synonyms: bereft, grief-stricken, grieving, mourning, sorrowing |
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| (noun) a person who has suffered the death of someone they loved | Synonyms: bereaved person |
| bereavement | (noun) state of sorrow over the death or departure of a loved one | Synonyms: mourning |
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| biconcave | (adjective) concave on both sides | Synonyms: concavo-concave |
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| bioflavinoid | (noun) a vitamin that maintains the resistance of cell and capillary walls to permeation | Synonyms: citrin, vitamin P |
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| bonavist | (noun) perennial twining vine of Old World tropics having trifoliate leaves and racemes of fragrant purple pea-like flowers followed by maroon pods of edible seeds; grown as an ornamental and as a vegetable on the Indian subcontinent; sometimes placed in genus Dolichos | Synonyms: Dolichos lablab, Egyptian bean, hyacinth bean, Indian bean, Lablab purpureus |
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| brainwave | (noun) the clear (and often sudden) understanding of a complex situation | Synonyms: brainstorm, insight |
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| (noun) (neurophysiology) rapid fluctuations of voltage between parts of the cerebral cortex that are detectable with an electroencephalograph | Synonyms: brain wave, cortical potential |
| brassavola | (noun) any of various tropical American orchids with usually solitary fleshy leaves and showy white to green nocturnally fragrant blossoms solitary or in racemes of up to 7 | - |
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| bravado | (noun) a swaggering show of courage | Synonyms: bluster |
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| brave | (adjective) possessing or displaying courage; able to face and deal with danger or fear without flinching | Synonyms: courageous |
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| (adjective) invulnerable to fear or intimidation | Synonyms: audacious, dauntless, fearless, hardy, intrepid, unfearing |
| (adjective) brightly colored and showy | Synonyms: braw, gay |
| (noun) people who are brave | - |
| (noun) a North American Indian warrior | - |
| (verb) face and withstand with courage | Synonyms: brave out, endure, weather |
| bravely | (adverb) in a courageous manner | Synonyms: courageously |
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| braveness | (noun) a quality of spirit that enables you to face danger or pain without showing fear | Synonyms: bravery, courage, courageousness |
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| bravery | (noun) a quality of spirit that enables you to face danger or pain without showing fear | Synonyms: braveness, courage, courageousness |
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| (noun) feeling no fear | Synonyms: fearlessness |
| bravo | (noun) a cry of approval as from an audience at the end of great performance | - |
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| (noun) a murderer (especially one who kills a prominent political figure) who kills by a surprise attack and often is hired to do the deed | Synonyms: assassin, assassinator |
| (verb) applaud with shouts of `bravo' or `brava' | - |
| bravura | (noun) brilliant and showy technical skill | - |
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| bunyavirus | (noun) an animal virus belonging to the family Bunyaviridae; can be used as a bioweapon | - |
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| burgrave | (noun) the military governor of a German town in the 12th and 13th centuries | - |
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| (noun) a nobleman ruling a German castle and surrounding grounds by hereditary right | - |
| cadaver | (noun) the dead body of a human being | Synonyms: clay, corpse, remains, stiff |
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| cadaveric | (adjective) of or relating to a cadaver or corpse | Synonyms: cadaverous |
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| cadaverine | (noun) a colorless toxic ptomaine with an unpleasant odor formed during the putrefaction of animal tissue | - |
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| cadaverous | (adjective) of or relating to a cadaver or corpse | Synonyms: cadaveric |
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| (adjective) very thin especially from disease or hunger or cold | Synonyms: emaciated, gaunt, haggard, pinched, skeletal, wasted |
| canavanine | (noun) an amino acid found in the jack bean | - |
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| caravan | (noun) a camper equipped with living quarters | Synonyms: van |
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| (noun) a procession (of wagons or mules or camels) traveling together in single file | Synonyms: train, wagon train |
| (verb) travel in a caravan | - |
| caravanning | (noun) the practice of taking holidays in a caravan | - |
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| caravansary | (noun) an inn in some eastern countries with a large courtyard that provides accommodation for caravans | Synonyms: caravan inn, caravanserai, khan |
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| caravanserai | (noun) an inn in some eastern countries with a large courtyard that provides accommodation for caravans | Synonyms: caravan inn, caravansary, khan |
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| casava | (noun) any of several plants of the genus Manihot having fleshy roots yielding a nutritious starch | Synonyms: cassava |
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| cassava | (noun) any of several plants of the genus Manihot having fleshy roots yielding a nutritious starch | Synonyms: casava |
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| (noun) cassava root eaten as a staple food after drying and leaching; source of tapioca | Synonyms: manioc |
| (noun) a starch made by leaching and drying the root of the cassava plant; the source of tapioca; a staple food in the tropics | Synonyms: cassava starch, manioc, manioca |
| cavalcade | (noun) a procession of people traveling on horseback | - |
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| cavalier | (adjective) given to haughty disregard of others | Synonyms: high-handed |
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| (noun) a gallant or courtly gentleman | Synonyms: chevalier |
| cavalierly | (adverb) in a proud and domineering manner | Synonyms: disdainfully |
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| cavalla | (noun) large mackerel with long pointed snout; important food and game fish of the eastern Atlantic coast southward to Brazil | Synonyms: cero, king mackerel, Scomberomorus cavalla |
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| cavalry | (noun) a highly mobile army unit | - |
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| (noun) troops trained to fight on horseback | Synonyms: horse, horse cavalry |
| cavalryman | (noun) a soldier mounted on horseback | Synonyms: trooper |
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| (noun) a soldier in a motorized army unit | Synonyms: trooper |
| cave | (noun) a geological formation consisting of an underground enclosure with access from the surface of the ground or from the sea | - |
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| (verb) explore natural caves | Synonyms: spelunk |
| (verb) hollow out as if making a cave or opening | Synonyms: undermine |
| caveat | (noun) a warning against certain acts | Synonyms: caution |
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| (noun) (law) a formal notice filed with a court or officer to suspend a proceeding until filer is given a hearing | - |
| caveman | (noun) someone who lives in a cave | Synonyms: cave dweller, cave man, troglodyte |
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| cavern | (noun) a large cave or a large chamber in a cave | - |
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| (noun) any large dark enclosed space | - |
| (verb) hollow out as if making a cavern | Synonyms: cavern out |
| cavernous | (adjective) filled with vascular sinuses and capable of becoming distended and rigid as the result of being filled with blood | Synonyms: erectile |
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| (adjective) being or suggesting a cavern | - |
| cavetto | (noun) a concave molding shaped like a quarter circle in cross section | - |
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| caviar | (noun) salted roe of sturgeon or other large fish; usually served as an hors d'oeuvre | Synonyms: caviare |
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| caviare | (noun) salted roe of sturgeon or other large fish; usually served as an hors d'oeuvre | Synonyms: caviar |
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| cavil | (noun) an evasion of the point of an argument by raising irrelevant distinctions or objections | Synonyms: quibble, quiddity |
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| (verb) raise trivial objections | Synonyms: carp, chicane |
| caviler | (noun) a disputant who quibbles; someone who raises annoying petty objections | Synonyms: caviller, pettifogger, quibbler |
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| caviller | (noun) a disputant who quibbles; someone who raises annoying petty objections | Synonyms: caviler, pettifogger, quibbler |
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| cavitied | (adjective) pitted with cell-like cavities (as a honeycomb) | Synonyms: alveolate, faveolate, honeycombed, pitted |
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| cavity | (noun) (anatomy) a natural hollow or sinus within the body | Synonyms: bodily cavity, cavum |
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| (noun) a sizeable hole (usually in the ground) | Synonyms: pit |
| (noun) soft decayed area in a tooth; progressive decay can lead to the death of a tooth | Synonyms: caries, dental caries, tooth decay |
| (noun) space that is surrounded by something | Synonyms: enclosed space |
| cavort | (verb) play boisterously | Synonyms: disport, frisk, frolic, gambol, lark, lark about, rollick, romp, run around, skylark, sport |
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| cavum | (noun) (anatomy) a natural hollow or sinus within the body | Synonyms: bodily cavity, cavity |
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| cavy | (noun) short-tailed rough-haired South American rodent | - |
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| centavo | (noun) a fractional monetary unit of several countries: El Salvador and Sao Tome and Principe and Brazil and Argentina and Bolivia and Colombia and Cuba and the Dominican Republic and Ecuador and El Salvador and Guatemala and Honduras and Mexico and Nicaragua and Peru and the Philippines and Portugal | - |
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| circumnavigate | (verb) travel around, either by plane or ship | Synonyms: compass |
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| circumnavigation | (noun) traveling around something (by ship or plane) | - |
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| claver | (verb) talk socially without exchanging too much information | Synonyms: chaffer, chat, chatter, chew the fat, chit-chat, chitchat, confab, confabulate, gossip, jaw, natter, shoot the breeze, visit |
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| clavichord | (noun) an early stringed instrument like a piano but with more delicate sound | - |
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| clavicle | (noun) bone linking the scapula and sternum | Synonyms: collarbone |
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| clavier | (noun) a bank of keys on a musical instrument | Synonyms: fingerboard, piano keyboard |
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| (noun) a stringed instrument that has a keyboard | Synonyms: Klavier |
| clavus | (noun) a hard thickening of the skin (especially on the top or sides of the toes) caused by the pressure of ill-fitting shoes | Synonyms: corn |
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| cleavable | (adjective) capable of being cleaved | - |
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| cleavage | (noun) the act of cleaving or splitting | - |
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| (noun) the line formed by a groove between two parts (especially the separation between a woman's breasts) | - |
| (noun) (embryology) the repeated division of a fertilised ovum | Synonyms: segmentation |
| (noun) the breaking of a chemical bond in a molecule resulting in smaller molecules | - |
| (noun) the state of being split or cleft | - |
| cleave | (verb) separate or cut with a tool, such as a sharp instrument | Synonyms: rive, split |
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| (verb) make by cutting into | - |
| (verb) come or be in close contact with; stick or hold together and resist separation | Synonyms: adhere, cling, cohere, stick |
| cleaver | (noun) a butcher's knife having a large square blade | Synonyms: chopper, meat cleaver |
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| cleavers | (noun) annual having the stem beset with curved prickles; North America and Europe and Asia | Synonyms: catchweed, clivers, Galium aparine, goose grass, spring cleavers |
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| concave | (adjective) curving inward | - |
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| concavely | (adverb) in a concave way | - |
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| concaveness | (noun) the property possessed by a concave shape | Synonyms: concavity |
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| concavity | (noun) the property possessed by a concave shape | Synonyms: concaveness |
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| (noun) a shape that curves or bends inward | Synonyms: concave shape, incurvation, incurvature |
| conclave | (noun) a confidential or secret meeting | - |
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| contravallation | (noun) a fortification build around a sieged target by the besiegers to prevent attacks by the defenders. | - |
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| contravene | (verb) deny the truth of | Synonyms: contradict, negate |
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| (verb) go against, as of rules and laws | Synonyms: conflict, infringe, run afoul |
| contravention | (noun) coming into conflict with | Synonyms: dispute |
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| coronavirus | (noun) a viral disease caused by SARS-CoV-2 that caused a global pandemic in 2020 | Synonyms: 2019-nCoV acute respiratory disease, corona, coronavirus disease 2019, COVID-19, novel coronavirus pneumonia, Wuhan coronavirus, Wuhan flu, Wuhan pneumonia, Wuhan virus |
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| cravat | (noun) neckwear worn in a slipknot with long ends overlapping vertically in front | - |
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| crave | (verb) plead or ask for earnestly | - |
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| (verb) have a craving, appetite, or great desire for | Synonyms: hunger, lust, starve, thirst |
| craved | (adjective) wanted intensely | Synonyms: desired |
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| craven | (adjective) lacking even the rudiments of courage; abjectly fearful | Synonyms: recreant |
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| (noun) an abject coward | Synonyms: poltroon, recreant |
| cravenness | (noun) meanspirited cowardice | - |
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| craving | (noun) an intense desire for some particular thing | - |
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| davallia | (noun) any fern of the genus Davallia; having scaly creeping rhizomes | - |
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| davenport | (noun) a large sofa usually convertible into a bed | - |
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| (noun) a small decorative writing desk | - |
| davit | (noun) a crane-like device (usually one of a pair) for suspending or lowering equipment (as a lifeboat) | - |
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| delavirdine | (noun) a non-nucleoside reverse transcriptase inhibitor (trade name Rescriptor) used to treat AIDS and HIV | Synonyms: Rescriptor |
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| demisemiquaver | (noun) a musical note having the time value of a thirty-second of a whole note | Synonyms: thirty-second note |
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| depravation | (noun) moral perversion; impairment of virtue and moral principles | Synonyms: corruption, degeneracy, depravity, putrefaction |
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| deprave | (verb) corrupt morally or by intemperance or sensuality | Synonyms: corrupt, debase, debauch, demoralise, demoralize, misdirect, pervert, profane, subvert, vitiate |
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| depraved | (adjective) deviating from what is considered moral or right or proper or good | Synonyms: perverse, perverted, reprobate |
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| depravity | (noun) a corrupt or depraved or degenerate act or practice | Synonyms: turpitude |
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| (noun) moral perversion; impairment of virtue and moral principles | Synonyms: corruption, degeneracy, depravation, putrefaction |
| dhava | (noun) an Indian tree of the family Combretaceae that is a source of timber and gum | Synonyms: dhawa |
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| disavow | (verb) refuse to acknowledge; disclaim knowledge of; responsibility for, or association with | - |
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| disavowable | (adjective) capable of being disavowed | - |
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