| bilgewater | (noun) pretentious or silly talk or writing | Synonyms: baloney, boloney, bosh, drool, humbug, taradiddle, tarradiddle, tommyrot, tosh, twaddle |
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| billow | (noun) a large sea wave | Synonyms: surge |
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| (verb) become inflated | Synonyms: balloon, inflate |
| (verb) rise and move, as in waves or billows | Synonyms: heave, surge |
| (verb) rise up as if in waves | Synonyms: wallow |
| (verb) move with great difficulty | - |
| billowing | (adjective) characterized by great swelling waves or surges | Synonyms: billowy, surging |
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| billowy | (adjective) characterized by great swelling waves or surges | Synonyms: billowing, surging |
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| bindweed | (noun) any of several vines of the genera Convolvulus and Calystegia having a twining habit | - |
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| bioweapon | (noun) any weapon usable in biological warfare | Synonyms: bioarm, biological weapon |
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| birdwatch | (verb) watch and study birds in their natural habitat | Synonyms: bird |
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| birthwort | (noun) creeping plant having curving flowers thought to resemble fetuses; native to Europe; naturalized Great Britain and eastern North America | Synonyms: Aristolochia clematitis |
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| bitewing | (noun) a dental X-ray film that can be held in place by the teeth during radiography | - |
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| bittersweet | (adjective) tinged with sadness | - |
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| (adjective) having a taste that is a mixture of bitterness and sweetness | Synonyms: semisweet |
| (noun) twining shrub of North America having yellow capsules enclosing scarlet seeds | Synonyms: American bittersweet, Celastrus scandens, climbing bittersweet, false bittersweet, shrubby bittersweet, staff vine, waxwork |
| (noun) poisonous perennial Old World vine having violet flowers and oval coral-red berries; widespread weed in North America | Synonyms: bittersweet nightshade, climbing nightshade, deadly nightshade, poisonous nightshade, Solanum dulcamara, woody nightshade |
| bitterweed | (noun) any of numerous chiefly North American weedy plants constituting the genus Ambrosia that produce highly allergenic pollen responsible for much hay fever and asthma | Synonyms: ambrosia, ragweed |
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| (noun) widespread European weed with spiny tongue-shaped leaves and yellow flowers; naturalized in United States | Synonyms: bristly oxtongue, bugloss, oxtongue, Picris echioides |
| bitterwood | (noun) handsome South American shrub or small tree having bright scarlet flowers and yielding a valuable fine-grained yellowish wood; yields the bitter drug quassia from its wood and bark | Synonyms: quassia, Quassia amara |
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| (noun) West Indian tree yielding the drug Jamaica quassia | Synonyms: Jamaica quassia, Picrasma excelsa, Picrasma excelsum |
| (noun) medium to large tree of tropical North and South America having odd-pinnate leaves and long panicles of small pale yellow flowers followed by scarlet fruits | Synonyms: paradise tree, Simarouba glauca |
| biweekly | (adjective) occurring every two weeks | Synonyms: fortnightly |
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| (adjective) occurring twice a week | Synonyms: semiweekly |
| (noun) a periodical that is published twice a week or every two weeks (either 104 or 26 issues per year) | - |
| (adverb) every two weeks | Synonyms: fortnightly |
| (adverb) twice a week | Synonyms: semiweekly |
| blackwash | (noun) a wash that colors a surface black | - |
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| (noun) a mixture of calomel and limewater that is used on syphilitic sores | Synonyms: black lotion |
| (noun) an attack intended to ruin someone's reputation | Synonyms: assassination, character assassination |
| (verb) color with blackwash | - |
| (verb) bring (information) out of concealment | - |
| blackwater | (noun) any of several human or animal diseases characterized by dark urine resulting from rapid breakdown of red blood cells | - |
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| blackwood | (noun) any of several hardwood trees yielding very dark-colored wood | Synonyms: blackwood tree |
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| (noun) very dark wood of any of several blackwood trees | - |
| bladderwort | (noun) any of numerous aquatic carnivorous plants of the genus Utricularia some of whose leaves are modified as small urn-shaped bladders that trap minute aquatic animals | - |
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| bladderwrack | (noun) a common rockweed used in preparing kelp and as manure | Synonyms: black rockweed, bladder fucus, Fucus vesiculosus, tang |
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| (noun) similar to and found with black rockweed | Synonyms: Ascophyllum nodosum |
| blameworthiness | (noun) a state of guilt | Synonyms: culpability, culpableness |
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| blameworthy | (adjective) deserving blame or censure as being wrong or evil or injurious | Synonyms: blamable, blameable, blameful, censurable, culpable |
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| blewits | (noun) edible agaric that is pale lilac when young; has a smooth moist cap | Synonyms: Clitocybe nuda |
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| blindworm | (noun) small burrowing legless European lizard with tiny eyes; popularly believed to be blind | Synonyms: Anguis fragilis, slowworm |
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| (noun) any of the small slender limbless burrowing wormlike amphibians of the order Gymnophiona; inhabit moist soil in tropical regions | Synonyms: caecilian |
| bloodworm | (noun) a segmented marine worm with bright red body; often used for bait | - |
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| bloodwort | (noun) any of various plants of the family Haemodoraceae; roots contain a deep red coloring matter | - |
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| blow | (noun) a powerful stroke with the fist or a weapon | - |
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| (noun) forceful exhalation through the nose or mouth | Synonyms: puff |
| (noun) street names for cocaine | Synonyms: C, coke, nose candy, snow |
| (noun) an impact (as from a collision) | Synonyms: bump |
| (noun) an unpleasant or disappointing surprise | Synonyms: shock |
| (noun) an unfortunate happening that hinders or impedes; something that is thwarting or frustrating | Synonyms: black eye, reversal, reverse, setback |
| (noun) a strong current of air | Synonyms: blast, gust |
| (verb) exhale hard | - |
| (verb) free of obstruction by blowing air through | - |
| (verb) melt, break, or become otherwise unusable | Synonyms: blow out, burn out |
| (verb) burst suddenly | - |
| (verb) shape by blowing | - |
| (verb) show off | Synonyms: bluster, boast, brag, gas, gasconade, shoot a line, swash, tout, vaunt |
| (verb) cause to be revealed and jeopardized | - |
| (verb) allow to regain its breath | - |
| (verb) deposit eggs (of insects) | - |
| (verb) be in motion due to some air or water current | Synonyms: be adrift, drift, float |
| (verb) cause to move by means of an air current | - |
| (verb) leave; informal or rude | Synonyms: shove along, shove off |
| (verb) cause air to go in, on, or through | - |
| (verb) spout moist air from the blowhole | - |
| (verb) play or sound a wind instrument | - |
| (verb) make a sound as if blown | - |
| (verb) sound by having air expelled through a tube | - |
| (verb) provide sexual gratification through oral stimulation | Synonyms: fellate, go down on, suck |
| (verb) spend lavishly or wastefully on | - |
| (verb) spend thoughtlessly; throw away | Synonyms: squander, waste |
| (verb) make a mess of, destroy or ruin | Synonyms: ball up, bobble, bodge, bollix, bollix up, bollocks, bollocks up, botch, botch up, bumble, bungle, flub, fluff, foul up, fuck up, fumble, louse up, mess up, mishandle, muck up, muff, screw up, spoil |
| (verb) be inadequate or objectionable | Synonyms: suck |
| (verb) be blowing or storming | - |
| blowback | (noun) Blowback is a system of operation for self-loading firearms that obtains energy from the motion of the cartridge case as it is pushed to the rear by expanding gases created by the ignition of the propellant charge. | - |
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| (noun) misinformation resulting from the recirculation into the source country of disinformation previously planted abroad by that country's intelligence service | - |
| (noun) the backward escape of gases and unburned gunpowder after a gun is fired | Synonyms: backfire |
| blowball | (noun) any of several herbs of the genus Taraxacum having long tap roots and deeply notched leaves and bright yellow flowers followed by fluffy seed balls | Synonyms: dandelion |
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| blowbang | (noun) A sexual activity where fellatio is performed on multiple men | - |
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| blower | (noun) large aquatic carnivorous mammal with fin-like forelimbs no hind limbs, including: whales, dolphins, porpoises, narwhals | Synonyms: cetacean, cetacean mammal |
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| (noun) a device that produces a current of air | - |
| (noun) a fan run by an electric motor | Synonyms: electric fan |
| blowfish | (noun) any of numerous marine fishes whose elongated spiny body can inflate itself with water or air to form a globe; several species contain a potent nerve poison; closely related to spiny puffers | Synonyms: globefish, puffer, pufferfish |
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| (noun) delicacy that is highly dangerous because of a potent nerve poison in ovaries and liver | Synonyms: puffer, pufferfish, sea squab |
| blowfly | (noun) large usually hairy metallic blue or green fly; lays eggs in carrion or dung or wounds | Synonyms: blow fly |
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| blowgun | (noun) a tube through which darts can be shot by blowing | Synonyms: blow tube, blowpipe, blowtube |
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| blowhard | (noun) a very boastful and talkative person | Synonyms: boaster, braggart, bragger, line-shooter, vaunter |
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| blowhole | (noun) a hole for the escape of gas or air | Synonyms: vent-hole, vent, venthole |
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| (noun) the spiracle of a cetacean located far back on the skull | - |
| blowing | (noun) processing that involves blowing a gas | - |
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| blowjob | (noun) slang for fellatio | Synonyms: cock sucking |
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| blowlamp | (noun) a burner that mixes air and gas to produce a very hot flame | Synonyms: blowtorch, torch |
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| blown | (adjective) breathing laboriously or convulsively | Synonyms: pursy, short-winded, winded |
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| (adjective) being moved or acted upon by moving air or vapor | - |
| blowout | (noun) a gay festivity | Synonyms: gala, gala affair, jamboree |
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| (noun) a sudden malfunction of a part or apparatus | - |
| (noun) an easy victory | Synonyms: laugher, romp, runaway, shoo-in, walkaway |
| blowpipe | (noun) a tube that directs air or gas into a flame to concentrate heat | Synonyms: blow tube, blowtube |
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| (noun) a tube through which darts can be shot by blowing | Synonyms: blow tube, blowgun, blowtube |
| blowsy | (adjective) characteristic of or befitting a slut or slattern; used especially of women | Synonyms: blowzy, slatternly, sluttish |
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| blowtorch | (noun) a burner that mixes air and gas to produce a very hot flame | Synonyms: blowlamp, torch |
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| blowtube | (noun) a tube that directs air or gas into a flame to concentrate heat | Synonyms: blow tube, blowpipe |
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| (noun) a tube through which darts can be shot by blowing | Synonyms: blow tube, blowgun, blowpipe |
| blowup | (noun) a photographic print that has been enlarged | Synonyms: enlargement, magnification |
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| (noun) an unrestrained expression of emotion | Synonyms: ebullition, effusion, gush, outburst |
| (noun) a violent release of energy caused by a chemical or nuclear reaction | Synonyms: detonation, explosion |
| blowy | (adjective) abounding in or exposed to the wind or breezes | Synonyms: breezy, windy |
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| blowzy | (adjective) characteristic of or befitting a slut or slattern; used especially of women | Synonyms: blowsy, slatternly, sluttish |
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| blueweed | (noun) a coarse prickly European weed with spikes of blue flowers; naturalized in United States | Synonyms: blue devil, blue thistle, Echium vulgare, viper's bugloss |
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| bluewing | (noun) American teal | Synonyms: Anas discors, blue-winged teal |
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| boardwalk | (noun) a walkway made of wooden boards; usually at seaside | - |
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| boatswain | (noun) a petty officer on a merchant ship who controls the work of other seamen | Synonyms: bo's'n, bo'sun, bos'n, bosun |
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| bobwhite | (noun) a popular North American game bird; named for its call | Synonyms: bobwhite quail, partridge |
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| bodywork | (noun) the work of making or repairing vehicle bodies | - |
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| (noun) the exterior body of a motor vehicle | - |
| bollworm | (noun) any of various moth caterpillars that destroy cotton bolls | - |
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| bondswoman | (noun) a female slave | Synonyms: bondmaid, bondwoman |
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| (noun) a female bound to serve without wages | Synonyms: bondmaid, bondwoman |
| (noun) a female who signs a bond as surety for someone else | - |
| bondwoman | (noun) a female slave | Synonyms: bondmaid, bondswoman |
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| (noun) a female bound to serve without wages | Synonyms: bondmaid, bondswoman |
| bookworm | (noun) someone who spends a great deal of time reading | - |
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| (noun) a person who pays more attention to formal rules and book learning than they merit | Synonyms: pedant, scholastic |
| borrow | (verb) get temporarily | - |
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| (verb) take up and practice as one's own | Synonyms: adopt, take over, take up |
| borrower | (noun) someone who receives something on the promise to return it or its equivalent | - |
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| borrowing | (noun) obtaining funds from a lender | - |
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| (noun) the appropriation (of ideas or words etc) from another source | Synonyms: adoption |
| bow | (noun) a stroke with a curved piece of wood with taut horsehair strands that is used in playing stringed instruments | - |
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| (noun) a slightly curved piece of resilient wood with taut horsehair strands; used in playing certain stringed instruments | - |
| (noun) a weapon for shooting arrows, composed of a curved piece of resilient wood with a taut cord to propel the arrow | - |
| (noun) a knot with two loops and loose ends; used to tie shoelaces | Synonyms: bowknot |
| (noun) a decorative interlacing of ribbons | - |
| (noun) something curved in shape | Synonyms: arc |
| (noun) front part of a vessel or aircraft | Synonyms: fore, prow, stem |
| (noun) an appearance by actors or performers at the end of the concert or play in order to acknowledge the applause of the audience | Synonyms: curtain call |
| (noun) bending the head or body or knee as a sign of reverence or submission or shame or greeting | Synonyms: bowing, obeisance |
| (verb) bend one's knee or body, or lower one's head | Synonyms: bow down |
| (verb) yield to another's wish or opinion | Synonyms: accede, defer, give in, submit |
| (verb) bend the head or the upper part of the body in a gesture of respect or greeting | - |
| (verb) bend one's back forward from the waist on down | Synonyms: bend, crouch, stoop |
| (verb) play on a stringed instrument with a bow | - |
| 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 |
| bowdlerise | (verb) edit by omitting or modifying parts considered indelicate | Synonyms: bowdlerize, castrate, expurgate, shorten |
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| 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 |
| bowdlerize | (verb) edit by omitting or modifying parts considered indelicate | Synonyms: bowdlerise, castrate, expurgate, shorten |
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| bowdlerizer | (noun) a person who edits a text by removing obscene or offensive words or passages | Synonyms: bowdleriser, expurgator |
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| bowed | (adjective) of a stringed instrument; sounded by stroking with a bow | - |
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| (adjective) forming or resembling an arch | Synonyms: arced, arched, arching, arciform, arcuate |
| (adjective) have legs that curve outward at the knees | Synonyms: bandy-legged, bandy, bowleg, bowlegged |
| (adjective) showing an excessively deferential manner | Synonyms: bowing |
| bowel | (noun) the part of the alimentary canal between the stomach and the anus | Synonyms: gut, intestine |
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| bowelless | (adjective) ruthless in competition | Synonyms: cutthroat, fierce |
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| bowels | (noun) the center of the Earth | - |
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| bower | (noun) a framework that supports climbing plants | Synonyms: arbor, arbour, pergola |
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| (verb) enclose in a bower | Synonyms: embower |
| bowerbird | (noun) any of various birds of the Australian region whose males build ornamented structures resembling bowers in order to attract females | Synonyms: catbird |
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| bowery | (adjective) like a bower; leafy and shady | - |
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| bowfin | (noun) primitive long-bodied carnivorous freshwater fish with a very long dorsal fin; found in sluggish waters of North America | Synonyms: Amia calva, dogfish, grindle |
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| bowfront | (adjective) having an outward curving front | - |
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| bowhead | (noun) large-mouthed Arctic whale | Synonyms: Balaena mysticetus, bowhead whale, Greenland whale |
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| bowing | (adjective) showing an excessively deferential manner | Synonyms: bowed |
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| (noun) managing the bow in playing a stringed instrument | - |
| (noun) bending the head or body or knee as a sign of reverence or submission or shame or greeting | Synonyms: bow, obeisance |
| bowknot | (noun) a knot with two loops and loose ends; used to tie shoelaces | Synonyms: bow |
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| bowl | (noun) the act of rolling something (as the ball in bowling) | Synonyms: roll |
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| (noun) a dish that is round and open at the top for serving foods | - |
| (noun) a round vessel that is open at the top; used chiefly for holding grains or liquids | - |
| (noun) a small round container that is open at the top for holding tobacco | Synonyms: pipe bowl |
| (noun) a large structure for open-air sports or entertainments | Synonyms: arena, sports stadium, stadium |
| (noun) a wooden ball (with flattened sides so that it rolls on a curved course) used in the game of lawn bowling | - |
| (noun) a large ball with finger holes used in the sport of bowling | Synonyms: bowling ball |
| (noun) the quantity contained in a bowl | Synonyms: bowlful |
| (noun) a concave shape with an open top | Synonyms: trough |
| (verb) engage in the sport of bowling | - |
| (verb) hurl a cricket ball from one end of the pitch towards the batsman at the other end | - |
| (verb) roll (a ball) | - |
| bowlder | (noun) a large smooth mass of rock detached from its place of origin | Synonyms: boulder |
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| bowleg | (adjective) have legs that curve outward at the knees | Synonyms: bandy-legged, bandy, bowed, bowlegged |
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| (noun) a leg bowed outward at the knee (or below the knee) | Synonyms: bandy leg, bandyleg, bow leg, genu varum, tibia vara |
| bowlegged | (adjective) have legs that curve outward at the knees | Synonyms: bandy-legged, bandy, bowed, bowleg |
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| bowler | (noun) a felt hat that is round and hard with a narrow brim | Synonyms: bowler hat, derby, derby hat, plug hat |
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| (noun) a player who rolls balls down an alley at pins | - |
| (noun) a cricketer who delivers the ball to the batsman in cricket | - |
| bowlful | (noun) the quantity contained in a bowl | Synonyms: bowl |
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| bowline | (noun) a loop knot that neither slips nor jams | Synonyms: bowline knot |
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| bowling | (noun) a game in which balls are rolled at an object or group of objects with the aim of knocking them over or moving them | - |
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| (noun) the playing of a game of tenpins or duckpins etc | - |
| (noun) (cricket) the act of delivering a cricket ball to the batsman | - |
| bowls | (noun) a bowling game played on a level lawn with biased wooden balls that are rolled at a jack | Synonyms: lawn bowling |
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| bowman | (noun) a person who is expert in the use of a bow and arrow | Synonyms: archer |
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| bowse | (verb) haul with a tackle | Synonyms: bouse |
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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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| bowtie | (noun) a man's tie that ties in a bow | Synonyms: bow-tie, bow tie |
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| boxwood | (noun) evergreen shrubs or small trees | Synonyms: box |
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| (noun) very hard tough close-grained light yellow wood of the box (particularly the common box); used in delicate woodwork: musical instruments and inlays and engraving blocks | Synonyms: Turkish boxwood |
| bradawl | (noun) an awl for making small holes for brads or small screws | Synonyms: pricker |
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| brainpower | (noun) mental ability | Synonyms: brain, learning ability, mental capacity, mentality, wit |
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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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