| loggerhead | (noun) very large carnivorous sea turtle; wide-ranging in warm open seas | Synonyms: Caretta caretta, loggerhead turtle |
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| (noun) a stupid person; these words are used to express a low opinion of someone's intelligence | Synonyms: blockhead, bonehead, dumbass, dunce, dunderhead, fuckhead, hammerhead, knucklehead, lunkhead, muttonhead, numskull, shithead |
| loggia | (noun) a roofed arcade or gallery with open sides stretching along the front or side of a building; often at an upper level | - |
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| logginess | (noun) a dull and listless state resulting from weariness | Synonyms: loginess |
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| logging | (noun) the work of cutting down trees for timber | - |
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| logic | (noun) the branch of philosophy that analyzes inference | - |
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| (noun) a system of reasoning | Synonyms: logical system, system of logic |
| (noun) reasoned and reasonable judgment | - |
| (noun) the principles that guide reasoning within a given field or situation | - |
| (noun) the system of operations performed by a computer that underlies the machine's representation of logical operations | - |
| logicality | (noun) correct and valid reasoning | Synonyms: logicalness |
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| logicalness | (noun) correct and valid reasoning | Synonyms: logicality |
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| logician | (noun) a person skilled at logic | Synonyms: logistician |
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| logicism | (noun) (philosophy) the philosophical theory that all of mathematics can be derived from formal logic | - |
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| loginess | (noun) a dull and listless state resulting from weariness | Synonyms: logginess |
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| logion | (noun) a saying of Jesus that is regarded as authentic although it is not recorded in the Gospels | - |
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| logistician | (noun) a person skilled at logic | Synonyms: logician |
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| logistics | (noun) handling an operation that involves providing labor and materials be supplied as needed | - |
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| logjam | (noun) an immovable mass of logs blocking a river | - |
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| (noun) any stoppage attributable to unusual activity | - |
| logo | (noun) a company emblem or device | Synonyms: logotype |
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| logogram | (noun) a single written symbol that represents an entire word or phrase without indicating its pronunciation | Synonyms: logograph |
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| logograph | (noun) a single written symbol that represents an entire word or phrase without indicating its pronunciation | Synonyms: logogram |
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| logomach | (noun) someone given to disputes over words | Synonyms: logomachist |
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| logomachist | (noun) someone given to disputes over words | Synonyms: logomach |
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| logomachy | (noun) argument about words or the meaning of words | - |
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| logomania | (noun) pathologically excessive (and often incoherent) talking | Synonyms: logorrhea |
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| logorrhea | (noun) pathologically excessive (and often incoherent) talking | Synonyms: logomania |
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| logotype | (noun) a company emblem or device | Synonyms: logo |
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| logrolling | (noun) rotating a log rapidly in the water (as a competitive sport) | Synonyms: birling |
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| (noun) act of exchanging favors for mutual gain; especially trading of influence or votes among legislators to gain passage of certain projects | - |
| logwood | (noun) spiny shrub or small tree of Central America and West Indies having bipinnate leaves and racemes of small bright yellow flowers and yielding a hard brown or brownish-red heartwood used in preparing a black dye | Synonyms: bloodwood tree, campeachy, Haematoxylum campechianum, logwood tree |
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| (noun) very hard brown to brownish-red heartwood of a logwood tree; used in preparing a purplish red dye | - |
| lohan | (noun) a Buddhist who has attained nirvana | Synonyms: Arhant, Arhat |
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| loin | (noun) either side of the backbone between the hipbone and the ribs in humans as well as quadrupeds | Synonyms: lumbus |
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| (noun) a cut of meat taken from the side and back of an animal between the ribs and the rump | - |
| loincloth | (noun) a garment that provides covering for the loins | Synonyms: breechcloth, breechclout |
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| loins | (noun) the lower part of the abdomen just above the external genital organs | Synonyms: pubes, pubic region |
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| (noun) the region of the hips and groin and lower abdomen | - |
| loir | (noun) large European dormouse | Synonyms: Glis glis |
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| loiterer | (noun) someone who lingers aimlessly in or about a place | Synonyms: lingerer |
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| loligo | (noun) somewhat flattened cylindrical squid | - |
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| lollipop | (noun) hard candy on a stick | Synonyms: all-day sucker, sucker |
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| (noun) ice cream or water ice on a small wooden stick | Synonyms: ice lolly, lolly, popsicle |
| lolly | (noun) ice cream or water ice on a small wooden stick | Synonyms: ice lolly, lollipop, popsicle |
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| (noun) informal terms for money | Synonyms: boodle, bread, cabbage, clams, dinero, dough, gelt, kale, lettuce, loot, lucre, moolah, pelf, scratch, shekels, simoleons, sugar, wampum |
| lomatia | (noun) any of various ornamental evergreens of the genus Lomatia having attractive fragrant flowers | - |
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| loment | (noun) seedpods that are constricted between the seeds and that break apart when mature into single-seeded segments | - |
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| lomustine | (noun) an antineoplastic drug often used to treat brain tumors or Hodgkin's disease | - |
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| loneliness | (noun) a disposition toward being alone | Synonyms: aloneness, lonesomeness, solitariness |
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| (noun) sadness resulting from being forsaken or abandoned | Synonyms: desolation, forlornness |
| (noun) the state of being alone in solitary isolation | Synonyms: solitariness |
| loner | (noun) a person who avoids the company or assistance of others | Synonyms: lone hand, lone wolf |
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| lonesomeness | (noun) a disposition toward being alone | Synonyms: aloneness, loneliness, solitariness |
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| longan | (noun) tree of southeastern Asia to Australia grown primarily for its sweet edible fruit resembling litchi nuts; sometimes placed in genera Euphorbia or Nephelium | Synonyms: Dimocarpus longan, Euphorbia litchi, longanberry, lungen, Nephelium longana |
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| longanberry | (noun) Asian fruit similar to litchi | Synonyms: dragon's eye |
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| (noun) tree of southeastern Asia to Australia grown primarily for its sweet edible fruit resembling litchi nuts; sometimes placed in genera Euphorbia or Nephelium | Synonyms: Dimocarpus longan, Euphorbia litchi, longan, lungen, Nephelium longana |
| longanimity | (noun) good-natured tolerance of delay or incompetence | Synonyms: forbearance, patience |
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| longbeard | (noun) a stoneware drinking jug with a long neck; decorated with a caricature of Cardinal Bellarmine (17th century) | Synonyms: bellarmine, greybeard, long-beard |
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| longboat | (noun) the largest boat carried by a merchant sailing vessel | - |
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| longbow | (noun) a powerful wooden bow drawn by hand; usually 5-6 feet long; used in medieval England | - |
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| longbowman | (noun) a medieval English archer who used a longbow | - |
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| longer | (noun) a person with a strong desire for something | Synonyms: thirster, yearner |
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| longevity | (noun) duration of service | Synonyms: length of service |
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| (noun) the property of being long-lived | Synonyms: seniority |
| longhand | (noun) rapid handwriting in which letters are set down in full and are cursively connected within words without lifting the writing implement from the paper | Synonyms: cursive, cursive script, running hand |
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| longhorn | (noun) long-horned beef cattle formerly common in southwestern United States | Synonyms: Texas longhorn |
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| longicorn | (noun) long-bodied beetle having very long antennae | Synonyms: long-horned beetle, longicorn beetle |
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| longing | (noun) prolonged unfulfilled desire or need | Synonyms: hungriness, yearning |
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| longitude | (noun) the angular distance between a point on any meridian and the prime meridian at Greenwich | - |
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| longlegs | (noun) long-legged three-toed black-and-white wading bird of inland ponds and marshes or brackish lagoons | Synonyms: Himantopus stilt, long-legs, stilt, stilt plover, stiltbird |
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| longness | (noun) the property of being of long spatial extent | - |
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| (noun) duration as an extension | - |
| longroot | (noun) deep-rooted perennial of southeastern United States | Synonyms: Arenaria caroliniana, pine-barren sandwort |
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| longship | (noun) a type of ship invented and used by the Vikings for trade, commerce, exploration, and warfare during the Viking Age. | - |
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| longshoreman | (noun) a laborer who loads and unloads vessels in a port | Synonyms: dock-walloper, dock worker, docker, dockhand, dockworker, loader, lumper, stevedore |
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| longshot | (noun) a photograph taken from a distance | - |
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| longsightedness | (noun) abnormal condition in which vision for distant objects is better than for near objects | Synonyms: farsightedness, hypermetropia, hypermetropy, hyperopia |
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| longueur | (noun) a period of dullness or boredom (especially in a work of literature or performing art) | - |
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| longways | (noun) country dancing performed with couples in two long lines facing each other | Synonyms: longways dance |
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| longwool | (noun) a domestic long-wool sheep | - |
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| longyi | (noun) a long piece of brightly colored cloth (cotton or silk) used as clothing (a skirt or loincloth or sash etc.) in India and Pakistan and Burma | Synonyms: lungi, lungyi |
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| lontar | (noun) tall fan palm of Africa and India and Malaysia yielding a hard wood and sweet sap that is a source of palm wine and sugar; leaves used for thatching and weaving | Synonyms: Borassus flabellifer, longar palm, palmyra, palmyra palm, toddy palm, wine palm |
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| loo | (noun) a toilet in Britain | Synonyms: closet, W.C., water closet |
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| loofa | (noun) the dried fibrous part of the fruit of a plant of the genus Luffa; used as a washing sponge or strainer | Synonyms: loofah, loufah sponge, luffa |
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| loofah | (noun) the loofah climber that has cylindrical fruit | Synonyms: Luffa cylindrica, vegetable sponge |
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| (noun) the dried fibrous part of the fruit of a plant of the genus Luffa; used as a washing sponge or strainer | Synonyms: loofa, loufah sponge, luffa |
| look | (noun) the act of directing the eyes toward something and perceiving it visually; look | Synonyms: looking, looking at |
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| (noun) physical appearance | - |
| (noun) the feelings expressed on a person's face | Synonyms: aspect, expression, face, facial expression |
| (noun) the general atmosphere of a place or situation and the effect that it has on people | Synonyms: feel, feeling, flavor, flavour, smell, spirit, tone |
| lookdown | (noun) similar to moonfish but with eyes high on the truncated forehead | Synonyms: lookdown fish, Selene vomer |
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| looker | (noun) a very attractive or seductive looking woman | Synonyms: beauty, dish, knockout, lulu, mantrap, peach, ravisher, smasher, stunner, sweetheart |
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| (noun) a close observer; someone who looks at something (such as an exhibition of some kind) | Synonyms: spectator, viewer, watcher, witness |
| looking | (noun) the act of searching visually | Synonyms: looking for |
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| (noun) the act of directing the eyes toward something and perceiving it visually; look | Synonyms: look, looking at |
| lookout | (noun) the act of looking out | Synonyms: outlook |
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| (noun) a structure commanding a wide view of its surroundings | Synonyms: lookout station, observation tower, observatory |
| (noun) an elevated post affording a wide view | Synonyms: observation post |
| (noun) a person employed to keep watch for some anticipated event | Synonyms: lookout man, picket, scout, sentinel, sentry, spotter, watch |
| lookup | (noun) an operation that determines whether one or more of a set of items has a specified property | Synonyms: search |
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| loom | (noun) a textile machine for weaving yarn into a textile | - |
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| loon | (noun) large somewhat primitive fish-eating diving bird of the Northern Hemisphere having webbed feet placed far back; related to the grebes | Synonyms: diver |
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| (noun) a worthless lazy fellow | - |
| (noun) a person with confused ideas; incapable of serious thought | Synonyms: addle-head, addlehead, birdbrain |
| looney | (noun) someone deranged and possibly dangerous | Synonyms: crazy, loony, nutcase, weirdo |
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| loonie | (noun) the basic unit of money in Canada | Synonyms: Canadian dollar |
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| loony | (noun) someone deranged and possibly dangerous | Synonyms: crazy, looney, nutcase, weirdo |
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| loop | (noun) a flight maneuver; aircraft flies a complete circle in the vertical plane | Synonyms: loop-the-loop |
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| (noun) an intrauterine device in the shape of a loop | - |
| (noun) fastener consisting of a metal ring for lining a small hole to permit the attachment of cords or lines | Synonyms: cringle, eyelet, grommet, grummet |
| (noun) a complete electrical circuit around which current flows or a signal circulates | Synonyms: closed circuit |
| (noun) the topology of a network whose components are serially connected in such a way that the last component is connected to the first component | Synonyms: loop topology |
| (noun) the basic pattern of the human fingerprint | - |
| (noun) a computer program that performs a series of instructions repeatedly until some specified condition is satisfied | - |
| (noun) an inner circle of advisors (especially under President Reagan) | - |
| (noun) (computer science) a single execution of a set of instructions that are to be repeated | Synonyms: iteration |
| (noun) anything with a round or oval shape (formed by a curve that is closed and does not intersect itself) | - |
| looper | (noun) small hairless caterpillar having legs on only its front and rear segments; mostly larvae of moths of the family Geometridae | Synonyms: inchworm, measuring worm |
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| loophole | (noun) a small hole in a fortified wall; for observation or discharging weapons | - |
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| (noun) an ambiguity (especially one in the text of a law or contract) that makes it possible to evade a difficulty or obligation | - |
| looping | (noun) (computer science) executing the same set of instructions a given number of times or until a specified result is obtained | Synonyms: iteration |
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| looseness | (noun) dissolute indulgence in sensual pleasure | Synonyms: dissipation, dissolution, licentiousness, profligacy |
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| (noun) movement or space for movement | Synonyms: play |
| (noun) a lack of strict accuracy; laxity of practice | - |
| (noun) freedom from restraint | - |
| (noun) the quality of movability by virtue of being free from attachment or other restraints | - |
| (noun) frequent and watery bowel movements; can be a symptom of infection or food poisoning or colitis or a gastrointestinal tumor | Synonyms: diarrhea, diarrhoea, looseness of the bowels |
| loosening | (noun) the act of making something less tight | Synonyms: laxation |
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| (noun) an occurrence of control or strength weakening | Synonyms: relaxation, slackening |
| loosestrife | (noun) any of numerous herbs and subshrubs of the genus Lythrum | - |
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| (noun) any of various herbs and subshrubs of the genus Lysimachia | - |
| loot | (noun) goods or money obtained illegally | Synonyms: booty, dirty money, pillage, plunder, prize, swag |
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| (noun) informal terms for money | Synonyms: boodle, bread, cabbage, clams, dinero, dough, gelt, kale, lettuce, lolly, lucre, moolah, pelf, scratch, shekels, simoleons, sugar, wampum |
| looter | (noun) someone who takes spoils or plunder (as in war) | Synonyms: despoiler, freebooter, pillager, plunderer, raider, spoiler |
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| looting | (noun) plundering during riots or in wartime | Synonyms: robbery |
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| lope | (noun) a smooth three-beat gait; between a trot and a gallop | Synonyms: canter |
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| (noun) a slow pace of running | Synonyms: jog, trot |
| lopper | (noun) a long-handled pruning saw with a curved blade at the end and sometimes a clipper; used to prune small trees | Synonyms: pruner, pruning hook |
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| lopsidedness | (noun) an oblique or slanting asymmetry | Synonyms: skewness |
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| loquaciousness | (noun) the quality of being wordy and talkative | Synonyms: garrulity, garrulousness, loquacity, talkativeness |
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| loquacity | (noun) the quality of being wordy and talkative | Synonyms: garrulity, garrulousness, loquaciousness, talkativeness |
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| loquat | (noun) yellow olive-sized semitropical fruit with a large free stone and relatively little flesh; used for jellies | Synonyms: Japanese plum |
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| (noun) evergreen tree of warm regions having fuzzy yellow olive-sized fruit with a large free stone; native to China and Japan | Synonyms: Eriobotrya japonica, Japanese medlar, Japanese plum, loquat tree |
| lorazepam | (noun) tranquilizer (trade name Ativan) used to treat anxiety and tension and insomnia | Synonyms: Ativan |
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| lorchel | (noun) a large fungus of the family Helvellaceae | - |
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| lord | (noun) a person who has general authority over others | Synonyms: master, overlord |
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| lordliness | (noun) formality in bearing and appearance | Synonyms: dignity, gravitas |
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| (noun) overbearing pride evidenced by a superior manner toward inferiors | Synonyms: arrogance, haughtiness, hauteur, high-handedness |