| ergosterol | (noun) a plant sterol that is converted into vitamin D by ultraviolet radiation | - |
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| ester | (noun) organic compound formed by reaction between an acid and an alcohol with elimination of water | - |
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| esterify | (verb) change (a compound) into an ester | - |
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| faster | (adverb) more quickly | Synonyms: quicker |
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| fester | (noun) a sore that has become inflamed and formed pus | Synonyms: suppurating sore |
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| (verb) ripen and generate pus | Synonyms: maturate, suppurate |
| festering | (noun) a fluid product of inflammation | Synonyms: ichor, purulence, pus, sanies, suppuration |
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| (noun) (medicine) the formation of morbific matter in an abscess or a vesicle and the discharge of pus | Synonyms: maturation, suppuration |
| filibuster | (noun) (law) a tactic for delaying or obstructing legislation by making long speeches | - |
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| (noun) a legislator who gives long speeches in an effort to delay or obstruct legislation that he (or she) opposes | Synonyms: filibusterer |
| (verb) obstruct deliberately by delaying | - |
| filibusterer | (noun) a legislator who gives long speeches in an effort to delay or obstruct legislation that he (or she) opposes | Synonyms: filibuster |
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| fluster | (noun) a disposition that is confused or nervous and upset | Synonyms: perturbation |
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| (verb) cause to be nervous or upset | - |
| (verb) be flustered; behave in a confused manner | - |
| flustered | (adjective) thrown into a state of agitated confusion; (`rattled' is an informal term) | Synonyms: hot and bothered, perturbed, rattled |
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| forecaster | (noun) someone who makes predictions of the future (usually on the basis of special knowledge) | Synonyms: predictor, prognosticator, soothsayer |
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| forester | (noun) someone trained in forestry | Synonyms: arboriculturist, tree farmer |
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| foster | (adjective) providing or receiving nurture or parental care though not related by blood or legal ties | Synonyms: surrogate |
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| (verb) help develop, help grow | Synonyms: nurture |
| (verb) promote the growth of | Synonyms: cultivate, further |
| (verb) bring up under fosterage; of children | - |
| fosterage | (noun) helping someone grow up to be an accepted member of the community | Synonyms: breeding, bringing up, fostering, nurture, raising, rearing, upbringing |
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| (noun) encouragement; aiding the development of something | Synonyms: fostering |
| fostering | (noun) helping someone grow up to be an accepted member of the community | Synonyms: breeding, bringing up, fosterage, nurture, raising, rearing, upbringing |
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| (noun) encouragement; aiding the development of something | Synonyms: fosterage |
| fosterling | (noun) a child who is raised by foster parents | Synonyms: foster-child, foster child |
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| gagster | (noun) someone who writes comic material for public performers | Synonyms: gagman, gagwriter |
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| gangster | (noun) a criminal who is a member of gang | Synonyms: mobster |
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| gasteromycete | (noun) any fungus of the class Gasteromycetes | Synonyms: gastromycete |
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| glister | (noun) the quality of shining with a bright reflected light | Synonyms: glisten, glitter, scintillation, sparkle |
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| glistering | (adjective) having brief brilliant points or flashes of light | Synonyms: aglitter, coruscant, fulgid, glinting, glittering, glittery, scintillant, scintillating, sparkly |
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| grandmaster | (noun) a player of exceptional or world class skill in chess or bridge | - |
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| hamster | (noun) short-tailed Old World burrowing rodent with large cheek pouches | - |
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| harvester | (noun) farm machine that gathers a food crop from the fields | Synonyms: reaper |
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| (noun) someone who helps to gather the harvest | Synonyms: reaper |
| headmaster | (noun) presiding officer of a school | Synonyms: master, schoolmaster |
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| headmastership | (noun) the position of headmaster | - |
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| hipster | (noun) someone who rejects the established culture; advocates extreme liberalism in politics and lifestyle | Synonyms: flower child, hippie, hippy |
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| hipsters | (noun) a youth subculture (mostly from the middle class) originating in San Francisco in the 1960s; advocated universal love and peace and communes and long hair and soft drugs; favored acid rock and progressive rock music | Synonyms: flower people, hippies |
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| hoister | (noun) an operator of a hoist | - |
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| holster | (noun) a sheath (usually leather) for carrying a handgun | - |
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| (noun) a belt with loops or slots for carrying small hand tools | - |
| housemaster | (noun) teacher in charge of a school boardinghouse | - |
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| huckster | (noun) a seller of shoddy goods | Synonyms: cheap-jack |
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| (noun) a person who writes radio or tv advertisements | - |
| (verb) sell or offer for sale from place to place | Synonyms: hawk, monger, peddle, pitch, vend |
| (verb) wrangle (over a price, terms of an agreement, etc.) | Synonyms: chaffer, haggle, higgle |
| hyperaldosteronism | (noun) a condition caused by overproduction of aldosterone | Synonyms: aldosteronism |
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| hypercholesteremia | (noun) the presence of an abnormal amount of cholesterol in the cells and plasma of the blood; associated with the risk of atherosclerosis | Synonyms: hypercholesterolemia |
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| hypercholesterolemia | (noun) the presence of an abnormal amount of cholesterol in the cells and plasma of the blood; associated with the risk of atherosclerosis | Synonyms: hypercholesteremia |
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| hypercoaster | (noun) a roller coaster that goes up 200 feet or higher and can catapult riders from 0 to 70 mph in 4 seconds by motors originally designed to launch rockets | - |
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| hysterectomy | (noun) surgical removal of the uterus | - |
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| hysteresis | (noun) the lagging of an effect behind its cause; especially the phenomenon in which the magnetic induction of a ferromagnetic material lags behind the changing magnetic field | - |
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| hysteria | (noun) excessive or uncontrollable fear | - |
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| (noun) neurotic disorder characterized by violent emotional outbreaks and disturbances of sensory and motor functions | Synonyms: hysterical neurosis |
| (noun) state of violent mental agitation | Synonyms: craze, delirium, frenzy, fury |
| hysteric | (adjective) characterized by or arising from psychoneurotic hysteria | Synonyms: hysterical |
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| (noun) a person suffering from hysteria | - |
| hysterical | (adjective) marked by excessive or uncontrollable emotion | - |
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| (adjective) characterized by or arising from psychoneurotic hysteria | Synonyms: hysteric |
| hysterically | (adverb) in a hysterical manner | - |
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| hysterics | (noun) an attack of hysteria | - |
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| hysterocatalepsy | (noun) hysteria with cataleptic symptoms | - |
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| hysterosalpingogram | (noun) X ray of the uterus and Fallopian tubes; usually done in diagnosing infertility (to see if there any blockages) | - |
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| hysteroscopy | (noun) visual examination of the uterus and uterine lining using an endoscope inserted through the vagina | - |
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| hysterotomy | (noun) surgical incision into the uterus (as in cesarean section) | - |
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| imposter | (noun) a person who makes deceitful pretenses | Synonyms: fake, faker, fraud, impostor, pretender, pseud, pseudo, role player, sham, shammer |
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| jester | (noun) a professional clown employed to entertain a king or nobleman in the Middle Ages | Synonyms: fool, motley fool |
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| jokester | (noun) a person who enjoys telling or playing jokes | Synonyms: joker |
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| keister | (noun) the fleshy part of the human body that you sit on | Synonyms: arse, ass, backside, behind, bottom, bum, buns, butt, buttocks, can, derriere, fanny, fundament, hind end, hindquarters, nates, posterior, prat, rear, rear end, rump, seat, stern, tail, tail end, tooshie, tush |
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| ketosteroid | (noun) a steroid containing a ketone group | - |
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| lackluster | (adjective) lacking luster or shine | Synonyms: lacklustre, lusterless, lustreless |
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| (adjective) lacking brilliance or vitality | Synonyms: lacklustre, lusterless, lustreless |
| leister | (noun) a spear with three or more prongs; used for spearing fish (especially salmon) | - |
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| lister | (noun) moldboard plow with a double moldboard designed to move dirt to either side of a central furrow | Synonyms: lister plough, lister plow, middle buster, middlebreaker |
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| (noun) assessor who makes out the tax lists | - |
| listeria | (noun) any species of the genus Listeria | - |
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| listeriosis | (noun) an infectious disease of animals and humans (especially newborn or immunosuppressed persons) caused by the bacterium Listeria monocytogenes; in sheep and cattle the infection frequently involves the central nervous system and causes various neurological symptoms | Synonyms: listeria meningitis |
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| lobster | (noun) any of several edible marine crustaceans of the families Homaridae and Nephropsidae and Palinuridae | - |
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| (noun) flesh of a lobster | - |
| lobsterback | (noun) British soldier; so-called because of his red coat (especially during the American Revolution) | Synonyms: redcoat |
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| lobsterman | (noun) a person whose occupation is catching lobsters | - |
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| lockmaster | (noun) a worker in charge of a lock (on a canal) | Synonyms: lockkeeper, lockman |
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| luster | (noun) a surface coating for ceramics or porcelain | Synonyms: lustre |
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| (noun) a quality that outshines the usual | Synonyms: brilliancy, lustre, splendor, splendour |
| (noun) the visual property of something that shines with reflected light | Synonyms: lustre, sheen, shininess |
| lusterless | (adjective) lacking luster or shine | Synonyms: lackluster, lacklustre, lustreless |
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| (adjective) lacking brilliance or vitality | Synonyms: lackluster, lacklustre, lustreless |
| lusterlessness | (noun) the property of having little or no contrast; lacking highlights or gloss | Synonyms: flatness, lustrelessness, mat, matt, matte |
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| lusterware | (noun) pottery with a metallic sheen produced by adding metallic oxides to the glaze | - |
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| magisterial | (adjective) of or relating to a magistrate | - |
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| (adjective) used of a person's appearance or behavior; befitting an eminent person | Synonyms: distinguished, grand, imposing |
| (adjective) offensively self-assured or given to exercising usually unwarranted power | Synonyms: autocratic, bossy, dominating, high-and-mighty, peremptory |
| magisterially | (adverb) in an authoritative and magisterial manner | Synonyms: authoritatively |
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| (adverb) in an overbearingly domineering manner; as a dictator | Synonyms: autocratically, dictatorially |
| maltster | (noun) a maker of malt | Synonyms: maltman |
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| master | (adjective) most important element | Synonyms: chief, main, primary, principal |
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| (noun) an original creation (i.e., an audio recording) from which copies can be made | Synonyms: master copy, original |
| (noun) key that secures entrance everywhere | Synonyms: master key, passe-partout, passkey |
| (noun) an artist of consummate skill | Synonyms: maestro |
| (noun) a combatant who is able to defeat rivals | Synonyms: superior, victor |
| (noun) an authority qualified to teach apprentices | Synonyms: professional |
| (noun) directs the work of others | - |
| (noun) a person who has general authority over others | Synonyms: lord, overlord |
| (noun) someone who holds a master's degree from academic institution | - |
| (noun) presiding officer of a school | Synonyms: headmaster, schoolmaster |
| (noun) an officer who is licensed to command a merchant ship | Synonyms: captain, sea captain, skipper |
| (verb) have a firm understanding or knowledge of; be on top of | Synonyms: control |
| (verb) be or become completely proficient or skilled in | Synonyms: get the hang |
| (verb) get on top of; deal with successfully | Synonyms: get over, overcome, subdue, surmount |
| (verb) have dominance or the power to defeat over | Synonyms: dominate |
| mastered | (adjective) understood perfectly | Synonyms: down, down pat |
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| masterful | (adjective) having or revealing supreme mastery or skill | Synonyms: consummate, masterly, virtuoso |
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| masterfully | (adverb) in a skillfully masterful manner; with the skill of a master | - |
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| mastering | (noun) the act of making a master recording from which copies can be made | - |
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| (noun) becoming proficient in the use of something; having mastery of | - |
| masterless | (adjective) having no lord or master | Synonyms: lordless |
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| masterly | (adjective) having or revealing supreme mastery or skill | Synonyms: consummate, masterful, virtuoso |
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| mastermind | (noun) someone who creates new things | Synonyms: conceiver, originator |
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| (noun) someone who has exceptional intellectual ability and originality | Synonyms: brain, brainiac, Einstein, genius |
| (verb) plan and direct (a complex undertaking) | Synonyms: direct, engineer, orchestrate, organise, organize |
| masterpiece | (noun) an outstanding achievement | - |
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| (noun) the most outstanding work of a creative artist or craftsman | Synonyms: chef-d'oeuvre |
| mastership | (noun) the position of master | - |
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| (noun) the skill of a master | - |
| masterstroke | (noun) an achievement demonstrating great skill or mastery | - |
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| masterwort | (noun) any plant of the genus Astrantia | Synonyms: astrantia |
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| mastery | (noun) the act of mastering or subordinating someone | Synonyms: subordination |
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| (noun) great skillfulness and knowledge of some subject or activity | Synonyms: command, control |
| (noun) power to dominate or defeat | Synonyms: domination, supremacy |
| medroxyprogesterone | (noun) a progestin compound (trade name Provera) used to treat menstrual disorders | Synonyms: Provera |
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| methyltestosterone | (noun) an androgenic compound contained in drugs that are used to treat testosterone deficiency and female breast cancer and to stimulate growth and weight gain | - |
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| midwestern | (adjective) of a region of the United States generally including Ohio, Indiana, Illinois, Iowa, Missouri, Kansas, Nebraska, and sometimes Michigan, Wisconsin, Minnesota | - |
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| minister | (noun) the job of a head of a government department | - |
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| (noun) a person authorized to conduct religious worship | Synonyms: curate, minister of religion, parson, pastor, rector |
| (noun) a diplomat representing one government to another; ranks below ambassador | Synonyms: diplomatic minister |
| (noun) a person appointed to a high office in the government | Synonyms: government minister |
| (verb) work as a minister | - |
| (verb) attend to the wants and needs of others | - |
| ministerial | (adjective) of or relating to a government minister or ministry | - |
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| (adjective) of or relating to a minister of religion or the minister's office | - |
| ministerially | (adverb) in the manner of a minister or clergyman | - |
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| minster | (noun) any of certain cathedrals and large churches; originally connected to a monastery | - |
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| mobster | (noun) a criminal who is a member of gang | Synonyms: gangster |
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| molester | (noun) someone who subjects others to unwanted or improper sexual activities | - |
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| monastery | (noun) the residence of a religious community | - |
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| monster | (noun) (medicine) a grossly malformed and usually nonviable fetus | Synonyms: teras |
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| (noun) a cruel wicked and inhuman person | Synonyms: demon, devil, fiend, ogre |
| (noun) a person or animal that is markedly unusual or deformed | Synonyms: freak, lusus naturae, monstrosity |
| (noun) an imaginary creature usually having various human and animal parts | - |
| (noun) someone that is abnormally large and powerful | Synonyms: behemoth, colossus, giant, goliath |
| monstera | (noun) tropical cylindrical fruit resembling a pinecone with pineapple-banana flavor | Synonyms: ceriman |
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| (noun) any plant of the genus Monstera; often grown as houseplants | - |
| muster | (noun) compulsory military service | Synonyms: conscription, draft, selective service |
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| (noun) a gathering of military personnel for duty | - |
| (verb) call to duty, military service, jury duty, etc. | - |
| (verb) gather or bring together | Synonyms: come up, muster up, rally, summon |
| mycosterol | (noun) a kind of sterol found in fungi. | - |
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| mysterious | (adjective) having an import not apparent to the senses nor obvious to the intelligence; beyond ordinary understanding | Synonyms: mystic, mystical, occult, orphic, secret |
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| (adjective) of an obscure nature | Synonyms: cryptic, cryptical, deep, inscrutable, mystifying |
| mysteriously | (adverb) in a cryptic manner | Synonyms: cryptically, enigmatically |
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| mystery | (noun) something that baffles understanding and cannot be explained | Synonyms: closed book, enigma, secret |
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| (noun) a story about a crime (usually murder) presented as a novel or play or movie | Synonyms: mystery story, whodunit |
| nester | (noun) a bird that has built (or is building) a nest | - |
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| (noun) someone who settles lawfully on government land with the intent to acquire title to it | Synonyms: homesteader, squatter |
| newscaster | (noun) someone who broadcasts the news | - |
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