| addlebrained | (adjective) stupid and confused | Synonyms: addlepated, muddleheaded, puddingheaded |
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| betweenbrain | (noun) the posterior division of the forebrain; connects the cerebral hemispheres with the mesencephalon | Synonyms: diencephalon, interbrain, thalmencephalon |
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| birdbrain | (noun) a person with confused ideas; incapable of serious thought | Synonyms: addle-head, addlehead, loon |
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| brain | (noun) that part of the central nervous system that includes all the higher nervous centers; enclosed within the skull; continuous with the spinal cord | Synonyms: encephalon |
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| (noun) mental ability | Synonyms: brainpower, learning ability, mental capacity, mentality, wit |
| (noun) that which is responsible for one's thoughts, feelings, and conscious brain functions; the seat of the faculty of reason | Synonyms: head, mind, nous, psyche |
| (noun) the brain of certain animals used as meat | - |
| (noun) someone who has exceptional intellectual ability and originality | Synonyms: brainiac, Einstein, genius, mastermind |
| (verb) hit on the head | - |
| (verb) kill by smashing someone's skull | - |
| braincase | (noun) the part of the skull that encloses the brain | Synonyms: brainpan, cranium |
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| brainchild | (noun) a product of your creative thinking and work | Synonyms: inspiration |
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| brainiac | (noun) someone who has exceptional intellectual ability and originality | Synonyms: brain, Einstein, genius, mastermind |
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| brainish | (adjective) characterized by undue haste and lack of thought or deliberation | Synonyms: hotheaded, impetuous, impulsive, madcap, tearaway |
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| brainless | (adjective) not using intelligence | Synonyms: headless |
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| brainpan | (noun) the part of the skull that encloses the brain | Synonyms: braincase, cranium |
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| brainpower | (noun) mental ability | Synonyms: brain, learning ability, mental capacity, mentality, wit |
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| brainsick | (adjective) affected with madness or insanity | Synonyms: crazy, demented, disturbed, mad, sick, unbalanced, unhinged |
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| brainstem | (noun) the part of the brain continuous with the spinal cord and comprising the medulla oblongata and pons and midbrain and parts of the hypothalamus | Synonyms: brain-stem, brain stem |
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| brainstorm | (noun) the clear (and often sudden) understanding of a complex situation | Synonyms: brainwave, insight |
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| (verb) try to solve a problem by thinking intensely about it | - |
| brainstorming | (noun) a group problem-solving technique in which members spontaneously share ideas and solutions | - |
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| brainwash | (verb) submit to brainwashing; indoctrinate forcibly | - |
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| (verb) persuade completely, often through coercion | - |
| brainwashed | (adjective) subjected to intensive forced indoctrination resulting in the rejection of old beliefs and acceptance of new ones | - |
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| brainwashing | (noun) forcible indoctrination into a new set of attitudes and beliefs | - |
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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 |
| brainworker | (noun) someone whose profession involves using his head to solve problems | Synonyms: brain-worker |
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| brainy | (adjective) having or marked by unusual and impressive intelligence | Synonyms: brilliant, smart as a whip |
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| constrain | (verb) severely restrict in scope or extent | Synonyms: stiffen, tighten, tighten up |
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| (verb) to close within bounds, or otherwise limit or deprive of free movement | Synonyms: confine, hold, restrain |
| (verb) compel to behave in a certain way | Synonyms: enforce, impose |
| constrained | (adjective) lacking spontaneity; not natural | Synonyms: forced, strained |
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| constrainedly | (adverb) in a constrained manner | - |
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| constraining | (adjective) restricting the scope or freedom of action | Synonyms: confining, constrictive, limiting, restricting |
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| constraint | (noun) the act of constraining; the threat or use of force to control the thoughts or behavior of others | - |
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| (noun) a device that retards something's motion | Synonyms: restraint |
| (noun) the state of being physically constrained | Synonyms: restraint |
| contraindicate | (verb) make a treatment inadvisable | - |
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| contraindication | (noun) (medicine) a reason that makes it inadvisable to prescribe a particular drug or employ a particular procedure or treatment | - |
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| crackbrained | (adjective) insanely irresponsible | Synonyms: idiotic |
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| detrain | (verb) leave a train | - |
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| distrain | (verb) confiscate by distress | - |
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| (verb) levy a distress on | - |
| (verb) legally take something in place of a debt payment | - |
| distraint | (noun) the seizure and holding of property as security for payment of a debt or satisfaction of a claim | Synonyms: distress |
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| drain | (noun) emptying something accomplished by allowing liquid to run out of it | Synonyms: drainage |
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| (noun) a gradual depletion of energy or resources | - |
| (noun) a pipe through which liquid is carried away | Synonyms: drainpipe, waste pipe |
| (noun) tube inserted into a body cavity (as during surgery) to remove unwanted material | - |
| (verb) empty of liquid; drain the liquid from | - |
| (verb) make weak | Synonyms: debilitate, enfeeble |
| (verb) deplete of resources | - |
| (verb) flow off gradually | Synonyms: run out |
| drainage | (noun) emptying something accomplished by allowing liquid to run out of it | Synonyms: drain |
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| drainboard | (noun) a board beside a kitchen sink and inclined to drain into the sink | Synonyms: draining board |
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| drained | (adjective) emptied or exhausted of (as by drawing off e.g. water or other liquid) | - |
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| (adjective) extremely exhausted | Synonyms: knackered |
| (adjective) drained of electric charge; discharged | Synonyms: dead |
| draining | (adjective) having a debilitating effect | Synonyms: exhausting |
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| drainpipe | (noun) a pipe through which liquid is carried away | Synonyms: drain, waste pipe |
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| drainplug | (noun) a removable plug for holding water in a tub or basin | - |
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| entrain | (verb) board a train | - |
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| eyestrain | (noun) a tiredness of the eyes caused by prolonged close work by a person with an uncorrected vision problem | Synonyms: asthenopia |
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| featherbrained | (adjective) lacking seriousness; given to frivolity | Synonyms: airheaded, dizzy, empty-headed, giddy, light-headed, lightheaded, silly |
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| forebrain | (noun) the anterior portion of the brain; the part of the brain that develops from the anterior part of the neural tube | Synonyms: prosencephalon |
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| geartrain | (noun) wheelwork consisting of a connected set of rotating gears by which force is transmitted or motion or torque is changed | Synonyms: gear, gearing, power train, train |
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| grain | (noun) the direction, texture, or pattern of fibers found in wood or leather or stone or in a woven fabric | - |
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| (noun) the physical composition of something (especially with respect to the size and shape of the small constituents of a substance) | Synonyms: texture |
| (noun) the smallest possible unit of anything | - |
| (noun) foodstuff prepared from the starchy grains of cereal grasses | Synonyms: cereal, food grain |
| (noun) a relatively small granular particle of a substance | - |
| (noun) dry seed-like fruit produced by the cereal grasses: e.g. wheat, barley, Indian corn | Synonyms: caryopsis |
| (noun) a cereal grass | - |
| (noun) 1/7000 pound; equals a troy grain or 64.799 milligrams | - |
| (noun) 1/60 dram; equals an avoirdupois grain or 64.799 milligrams | - |
| (noun) a weight unit used for pearls or diamonds: 50 mg or 1/4 carat | Synonyms: metric grain |
| (noun) the side of leather from which the hair has been removed | - |
| (verb) form into grains | Synonyms: granulate |
| (verb) become granular | Synonyms: granulate |
| (verb) thoroughly work in | Synonyms: ingrain |
| (verb) paint (a surface) to make it look like stone or wood | - |
| grainfield | (noun) a field where grain is grown | Synonyms: grain field |
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| graininess | (noun) the quality of being composed of relatively large particles | Synonyms: coarseness, granularity |
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| graining | (noun) a texture like that of wood | Synonyms: woodgraining |
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| grainy | (adjective) composed of or covered with particles resembling meal in texture or consistency | Synonyms: coarse-grained, farinaceous, granular, granulose, gritty, mealy |
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| grosgrain | (noun) a silk or silklike fabric with crosswise ribs | - |
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| harebrained | (adjective) very foolish | Synonyms: insane, mad |
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| hindbrain | (noun) the posterior portion of the brain including cerebellum and brainstem | Synonyms: rhombencephalon |
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| ingrain | (verb) produce or try to produce a vivid impression of | Synonyms: impress, instill |
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| (verb) thoroughly work in | Synonyms: grain |
| ingrained | (adjective) (used especially of ideas or principles) deeply rooted; firmly fixed or held | Synonyms: deep-rooted, deep-seated, implanted, planted |
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| ingraining | (noun) teaching or impressing upon the mind by frequent instruction or repetition | Synonyms: inculcation, instilling |
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| interbrain | (noun) the posterior division of the forebrain; connects the cerebral hemispheres with the mesencephalon | Synonyms: betweenbrain, diencephalon, thalmencephalon |
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| midbrain | (noun) the middle portion of the brain | Synonyms: mesencephalon |
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| migraine | (noun) a severe recurring vascular headache; occurs more frequently in women than men | Synonyms: hemicrania, megrim, sick headache |
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| moraine | (noun) accumulated earth and stones deposited by a glacier | - |
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| murrain | (noun) any disease of domestic animals that resembles a plague | - |
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| overstrain | (noun) too much strain | - |
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| (verb) strain excessively | Synonyms: overextend |
| quatrain | (noun) a stanza of four lines | - |
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| rain | (noun) anything happening rapidly or in quick successive | Synonyms: pelting |
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| (noun) water falling in drops from vapor condensed in the atmosphere | Synonyms: rainfall |
| (noun) drops of fresh water that fall as precipitation from clouds | Synonyms: rainwater |
| (verb) precipitate as rain | Synonyms: rain down |
| rainbow | (noun) an illusory hope | - |
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| (noun) an arc of colored light in the sky caused by refraction of the sun's rays by rain | - |
| raincoat | (noun) a water-resistant coat | Synonyms: waterproof |
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| raindrop | (noun) a drop of rain | - |
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| rainfall | (noun) water falling in drops from vapor condensed in the atmosphere | Synonyms: rain |
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| rainfly | (noun) flap consisting of a piece of canvas that can be drawn back to provide entrance to a tent | Synonyms: fly, fly sheet, tent-fly, tent flap |
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| rainforest | (noun) a forest with heavy annual rainfall | Synonyms: rain forest |
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| raininess | (noun) (of weather) the badness of the weather | Synonyms: foulness |
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| raining | (adjective) falling in drops or as if falling like rain | - |
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| rainless | (adjective) lacking rain | - |
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| rainlessness | (noun) The state or condition of being rainless; lack of rain; drought. | - |
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| rainmaker | (noun) American Indian medicine man who attempt to make it rain | - |
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| (noun) executive who is very successful in bringing in business to his company or firm | - |
| rainmaking | (noun) activity intended to produce rain | - |
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| rainproof | (adjective) not permitting the passage of water | Synonyms: waterproof, waterproofed |
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| rainstorm | (noun) a storm with rain | - |
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| rainwater | (noun) drops of fresh water that fall as precipitation from clouds | Synonyms: rain |
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| rainy | (adjective) (of weather) wet by periods of rain | Synonyms: showery |
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| rattlebrained | (adjective) lacking sense or discretion | Synonyms: rattlepated, scatterbrained, scatty |
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| refrain | (noun) the part of a song where a soloist is joined by a group of singers | Synonyms: chorus |
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| (verb) choose not to consume | Synonyms: abstain, desist |
| (verb) resist doing something | Synonyms: forbear |
| restrain | (verb) prevent the action or expression of | Synonyms: hold back, keep, keep back |
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| (verb) to close within bounds, or otherwise limit or deprive of free movement | Synonyms: confine, constrain, hold |
| (verb) restrict (someone or something) so as to make free movement difficult | Synonyms: cumber, encumber |
| (verb) prevent (someone or something) from doing something | - |
| restrained | (adjective) under restraint | - |
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| (adjective) prudent | Synonyms: guarded |
| (adjective) marked by avoidance of extravagance or extremes | Synonyms: moderate |
| (adjective) cool and formal in manner | Synonyms: reticent, unemotional |
| (adjective) not showy or obtrusive | Synonyms: quiet |
| restrainer | (noun) a person who directs and restrains | Synonyms: controller |
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| (noun) a chemical that is added to a photographic developer in order to retard development and reduce the amount of fog on a film | - |
| restraint | (noun) the act of controlling by restraining someone or something | - |
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| (noun) a device that retards something's motion | Synonyms: constraint |
| (noun) discipline in personal and social activities | Synonyms: control |
| (noun) lack of ornamentation | Synonyms: chasteness, simpleness, simplicity |
| (noun) a rule or condition that limits freedom | - |
| (noun) the state of being physically constrained | Synonyms: constraint |
| retrain | (verb) train again | - |
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| (verb) teach new skills | - |
| retraining | (noun) training for a new occupation | - |
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| scatterbrain | (noun) a flighty and disorganized person | Synonyms: forgetful person |
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| scatterbrained | (adjective) lacking sense or discretion | Synonyms: rattlebrained, rattlepated, scatty |
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| (adjective) guided by whim and fancy | Synonyms: flighty, flyaway, head-in-the-clouds |
| sprain | (noun) a painful injury to a joint caused by a sudden wrenching of its ligaments | - |
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| (verb) twist suddenly so as to sprain | Synonyms: rick, turn, twist, wrench, wrick |
| strain | (noun) an effortful attempt to attain a goal | Synonyms: nisus, pains, striving |
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| (noun) the act of singing | Synonyms: song |
| (noun) an intense or violent exertion | Synonyms: straining |
| (noun) the general meaning or substance of an utterance | Synonyms: tenor |
| (noun) a succession of notes forming a distinctive sequence | Synonyms: air, line, melodic line, melodic phrase, melody, tune |
| (noun) a special variety of domesticated animals within a species | Synonyms: breed, stock |
| (noun) (biology) a group of organisms within a species that differ in trivial ways from similar groups | Synonyms: form, var., variant |
| (noun) (physics) deformation of a physical body under the action of applied forces | - |
| (noun) injury to a muscle (often caused by overuse); results in swelling and pain | - |
| (noun) (psychology) nervousness resulting from mental stress | Synonyms: mental strain, nervous strain |
| (noun) difficulty that causes worry or emotional tension | Synonyms: stress |
| (verb) cause to be tense and uneasy or nervous or anxious | Synonyms: tense, tense up |
| (verb) alter the shape of (something) by stress | Synonyms: deform, distort |
| (verb) to exert much effort or energy | Synonyms: reach, strive |
| (verb) use to the utmost; exert vigorously or to full capacity | Synonyms: extend |
| (verb) remove by passing through a filter | Synonyms: filter, filter out, filtrate, separate out |
| (verb) separate by passing through a sieve or other straining device to separate out coarser elements | Synonyms: sieve, sift |
| (verb) become stretched or tense or taut | Synonyms: tense |
| (verb) rub through a strainer or process in an electric blender | Synonyms: puree |
| (verb) test the limits of | Synonyms: stress, try |
| strained | (adjective) struggling for effect | Synonyms: agonistic |
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| (adjective) lacking natural ease | Synonyms: labored, laboured |
| (adjective) showing signs of mental and emotional tension | - |
| (adjective) lacking spontaneity; not natural | Synonyms: constrained, forced |
| strainer | (noun) a filter to retain larger pieces while smaller pieces and liquids pass through | - |
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| straining | (adjective) taxing to the utmost; testing powers of endurance | Synonyms: arduous, strenuous |
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| (noun) the act of distorting something so it seems to mean something it was not intended to mean | Synonyms: distortion, overrefinement, torture, twisting |
| (noun) an intense or violent exertion | Synonyms: strain |
| suprainfection | (noun) secondary infection caused by an opportunistic infection | - |
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| suzerain | (noun) a state exercising a degree of dominion over a dependent state especially in its foreign affairs | - |
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| suzerainty | (noun) the domain of a suzerain | - |
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| (noun) the position or authority of a suzerain | - |
| terrain | (noun) a piece of ground having specific characteristics or military potential | - |
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| train | (noun) public transport provided by a line of railway cars coupled together and drawn by a locomotive | Synonyms: railroad train |
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| (noun) wheelwork consisting of a connected set of rotating gears by which force is transmitted or motion or torque is changed | Synonyms: gear, gearing, geartrain, power train |
| (noun) piece of cloth forming the long back section of a gown that is drawn along the floor | - |
| (noun) a series of consequences wrought by an event | - |
| (noun) a procession (of wagons or mules or camels) traveling together in single file | Synonyms: caravan, wagon train |
| (noun) a sequentially ordered set of things or events or ideas in which each successive member is related to the preceding | Synonyms: string |
| (verb) exercise in order to prepare for an event or competition | - |
| (verb) undergo training or instruction in preparation for a particular role, function, or profession | Synonyms: prepare |
| (verb) create by training and teaching | Synonyms: develop, educate, prepare |
| (verb) teach and supervise (someone); act as a trainer or coach (to), as in sports | Synonyms: coach |
| (verb) point or cause to go (blows, weapons, or objects such as photographic equipment) towards | Synonyms: aim, direct, take, take aim |
| (verb) drag loosely along a surface; allow to sweep the ground | Synonyms: trail |
| (verb) travel by rail or train | Synonyms: rail |
| (verb) educate for a future role or function | Synonyms: groom, prepare |
| (verb) teach or refine to be discriminative in taste or judgment | Synonyms: civilise, civilize, cultivate, educate, school |
| (verb) develop (a child's or animal's) behavior by instruction and practice; especially to teach self-control | Synonyms: check, condition, discipline |
| (verb) cause to grow in a certain way by tying and pruning it | - |
| trainband | (noun) a company of militia in England or America from the 16th century to the 18th century | - |
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