| rinkhals | (noun) highly venomous snake of southern Africa able to spit venom up to seven feet | Synonyms: Hemachatus haemachatus, ringhals, spitting snake |
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| riverbank | (noun) the bank of a river | Synonyms: riverside |
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| sandbank | (noun) a submerged bank of sand near a shore or in a river; can be exposed at low tide | - |
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| scrimshanker | (noun) a shirker | - |
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| shank | (noun) a poor golf stroke in which the heel of the club hits the ball | - |
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| (noun) lower part of the leg extending from the hock to the fetlock in hoofed mammals | Synonyms: cannon |
| (noun) the narrow part of the shoe connecting the heel and the wide part of the sole | Synonyms: waist |
| (noun) cylinder forming the part of a bit by which it is held in the drill | - |
| (noun) cylinder forming the part of a bolt between the thread and the head | - |
| (noun) cylinder forming a long narrow part of something | Synonyms: stem |
| (noun) the part of the human leg between the knee and the ankle | - |
| (noun) a cut of meat (beef or veal or mutton or lamb) from the upper part of the leg | - |
| sheepshank | (noun) a knot for shortening a line | - |
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| shrink | (noun) a physician who specializes in psychiatry | Synonyms: head-shrinker, psychiatrist |
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| shrinkage | (noun) the act of stealing goods that are on display in a store | Synonyms: shoplifting |
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| (noun) the amount by which something shrinks | - |
| (noun) process or result of becoming less or smaller | Synonyms: shrinking |
| shrinking | (noun) the act of becoming less | - |
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| (noun) process or result of becoming less or smaller | Synonyms: shrinkage |
| sink | (noun) plumbing fixture consisting of a water basin fixed to a wall or floor and having a drainpipe | - |
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| (noun) a covered cistern; waste water and sewage flow into it | Synonyms: cesspit, cesspool, sump |
| (noun) a depression in the ground communicating with a subterranean passage (especially in limestone) and formed by solution or by collapse of a cavern roof | Synonyms: sinkhole, swallow hole |
| (noun) (technology) a process that acts to absorb or remove energy or a substance from a system | - |
| sinker | (noun) a pitch that curves downward rapidly as it approaches the plate | - |
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| (noun) a weight that sinks (as to hold nets or fishing lines under water) | - |
| (noun) a small ring-shaped friedcake | Synonyms: donut, doughnut |
| sinkhole | (noun) a depression in the ground communicating with a subterranean passage (especially in limestone) and formed by solution or by collapse of a cavern roof | Synonyms: sink, swallow hole |
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| sinking | (noun) a descent as through liquid (especially through water) | - |
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| (noun) a slow fall or decline (as for lack of strength) | - |
| (noun) a feeling caused by uneasiness or apprehension | Synonyms: sinking feeling |
| skank | (noun) a rhythmic dance to reggae music performed by bending forward and extending the hands while bending the knees | - |
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| (noun) any substance considered disgustingly foul or unpleasant | Synonyms: crud, filth |
| skink | (noun) alert agile lizard with reduced limbs and an elongated body covered with shiny scales; more dependent on moisture than most lizards; found in tropical regions worldwide | Synonyms: scincid, scincid lizard |
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| skunk | (noun) American musteline mammal typically ejecting an intensely malodorous fluid when startled; in some classifications put in a separate subfamily Mephitinae | Synonyms: polecat, wood pussy |
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| (noun) street names for marijuana | Synonyms: dope, gage, grass, green goddess, locoweed, Mary Jane, pot, sens, sess, smoke, weed |
| (noun) a defeat in a game where one side fails to score | Synonyms: shutout |
| (noun) a person who is deemed to be despicable or contemptible | Synonyms: bum, crumb, dirty dog, git, lowlife, puke, rat, rotter, scum bag, scumbag, so-and-so, stinker, stinkpot |
| skunkbush | (noun) deciduous shrub of California with unpleasantly scented usually trifoliate leaves and edible fruit | Synonyms: Rhus trilobata, squaw-bush, squawbush |
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| skunkweed | (noun) tall herb of the Rocky Mountains having sticky leaves and an offensive smell | Synonyms: Polemonium viscosum, skunk-weed |
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| snowbank | (noun) a mound or heap of snow | Synonyms: snow bank |
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| spank | (noun) a slap with the flat of the hand | - |
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| spanker | (noun) a fore-and-aft sail set on the aftermost lower mast (usually the mizzenmast) of a vessel | - |
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| (noun) a hitter who slaps (usually another person) with an open hand | Synonyms: slapper |
| spanking | (noun) the act of slapping on the buttocks | - |
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| spelunker | (noun) a person who explores caves | Synonyms: potholer, spelaeologist, speleologist |
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| spindleshanks | (noun) long thin legs | Synonyms: spindlelegs |
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| (noun) a thin person with long thin legs | Synonyms: spindlelegs |
| sprinkle | (noun) the act of sprinkling or splashing water | Synonyms: sparge, sprinkling |
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| (noun) a light shower that falls in some locations and not others nearby | Synonyms: scattering, sprinkling |
| sprinkler | (noun) mechanical device that attaches to a garden hose for watering lawn or garden | - |
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| sprinkles | (noun) bits of sweet chocolate used as a topping on e.g. ice cream | Synonyms: jimmies |
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| sprinkling | (noun) the act of sprinkling water in baptism (rare) | Synonyms: aspersion |
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| (noun) the act of sprinkling or splashing water | Synonyms: sparge, sprinkle |
| (noun) a light shower that falls in some locations and not others nearby | Synonyms: scattering, sprinkle |
| (noun) a small number (of something) dispersed haphazardly | Synonyms: scattering |
| spunk | (noun) the courage to carry on | Synonyms: heart, mettle, nerve |
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| (noun) material for starting a fire | Synonyms: kindling, punk, tinder, touchwood |
| stank | (noun) A smell of genitals or sex | - |
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| steampunk | (noun) A subgenre of speculative science fiction set in an anachronistic 19th century society. | - |
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| stink | (noun) a distinctive odor that is offensively unpleasant | Synonyms: fetor, foetor, malodor, malodour, mephitis, reek, stench |
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| stinkbird | (noun) crested ill-smelling South American bird whose young have claws on the first and second digits of the wings | Synonyms: hoactzin, hoatzin, Opisthocomus hoazin |
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| stinker | (noun) an artifact (especially an automobile) that is defective or unsatisfactory | Synonyms: lemon |
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| (noun) anything that gives off an offensive odor (especially a cheap cigar) | - |
| (noun) a person who is deemed to be despicable or contemptible | Synonyms: bum, crumb, dirty dog, git, lowlife, puke, rat, rotter, scum bag, scumbag, skunk, so-and-so, stinkpot |
| stinkhorn | (noun) any of various ill-smelling brown-capped fungi of the order Phallales | Synonyms: carrion fungus |
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| stinkiness | (noun) the attribute of having a strong offensive smell | Synonyms: fetidness, foulness, malodorousness, rankness |
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| stinkpot | (noun) small freshwater turtle having a strong musky odor | Synonyms: musk turtle |
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| (noun) a person who is deemed to be despicable or contemptible | Synonyms: bum, crumb, dirty dog, git, lowlife, puke, rat, rotter, scum bag, scumbag, skunk, so-and-so, stinker |
| stinkweed | (noun) foetid Eurasian weed having round flat pods; naturalized throughout North America | Synonyms: fanweed, field pennycress, French weed, mithridate mustard, penny grass, Thlaspi arvense |
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| stotinka | (noun) 100 stotinka equal 1 lev in Bulgaria | - |
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| supertanker | (noun) the largest class of oil tankers | - |
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| swank | (noun) elegance by virtue of being fashionable | Synonyms: chic, chichi, chicness, last word, modishness, smartness, stylishness |
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| tank | (noun) a large (usually metallic) vessel for holding gases or liquids | Synonyms: storage tank |
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| (noun) an enclosed armored military vehicle; has a cannon and moves on caterpillar treads | Synonyms: armored combat vehicle, armoured combat vehicle, army tank |
| (noun) a freight car that transports liquids or gases in bulk | Synonyms: tank car |
| (noun) a cell for violent prisoners | Synonyms: cooler |
| (noun) as much as a tank will hold | Synonyms: tankful |
| tanka | (noun) a Tibetan religious painting on fabric | - |
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| (noun) a form of Japanese poetry; the 1st and 3rd lines have five syllables and the 2nd, 4th, and 5th have seven syllables | - |
| tankage | (noun) the act of storing in tanks | - |
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| (noun) the charge for storing something in tanks | - |
| (noun) the quantity contained in (or the capacity of) a tank or tanks | - |
| tankard | (noun) large drinking vessel with one handle | - |
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| tanker | (noun) a cargo ship designed to carry crude oil in bulk | Synonyms: oil tanker, oiler, tank ship |
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| (noun) a motor vehicle designed to carry liquefied loads, dry bulk cargo or gases on roads. | Synonyms: tank truck, tanker truck |
| (noun) a soldier who drives a tank | Synonyms: tank driver |
| tankful | (noun) as much as a tank will hold | Synonyms: tank |
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| thankfulness | (noun) warm friendly feelings of gratitude | Synonyms: appreciativeness, gratefulness |
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| thanks | (noun) with the help of or owing to | - |
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| (noun) an acknowledgment of appreciation | - |
| thanksgiving | (noun) a short prayer of thanks before a meal | Synonyms: blessing, grace |
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| think | (noun) an instance of deliberate thinking | - |
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| thinker | (noun) an important intellectual | Synonyms: creative thinker, mind |
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| (noun) someone who exercises the mind (usually in an effort to reach a decision) | - |
| thinking | (noun) the process of using your mind to consider something carefully | Synonyms: cerebration, intellection, mentation, thought, thought process |
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| thunk | (noun) a dull hollow sound | - |
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| tiddlywinks | (noun) a game in which players try to flip plastic disks into a cup by pressing them on the side sharply with a larger disk | - |
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| tinker | (noun) small mackerel found nearly worldwide | Synonyms: chub mackerel, Scomber japonicus |
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| (noun) formerly a person (traditionally a Gypsy) who traveled from place to place mending pots and kettles and other metal utensils as a way to earn a living | - |
| (noun) a person who enjoys fixing and experimenting with machines and their parts | Synonyms: tinkerer |
| tinkerer | (noun) an unskilled person who tries to fix or mend | Synonyms: fiddler |
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| (noun) a person who enjoys fixing and experimenting with machines and their parts | Synonyms: tinker |
| tinkle | (noun) a light clear metallic sound as of a small bell | Synonyms: ting |
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| trinket | (noun) cheap showy jewelry or ornament on clothing | Synonyms: bangle, bauble, fallal, gaud, gewgaw, novelty |
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| trinketry | (noun) trinkets and other ornaments of dress collectively | - |
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| trunk | (noun) a long flexible snout as of an elephant | Synonyms: proboscis |
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| (noun) luggage consisting of a large strong case used when traveling or for storage | - |
| (noun) compartment in an automobile that carries luggage or shopping or tools | Synonyms: automobile trunk, boot, luggage compartment |
| (noun) the body excluding the head and neck and limbs | Synonyms: body, torso |
| (noun) the main stem of a tree; usually covered with bark; the bole is usually the part that is commercially useful for lumber | Synonyms: bole, tree trunk |
| trunkfish | (noun) any of numerous small tropical fishes having body and head encased in bony plates | Synonyms: boxfish |
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| trunks | (noun) (used in the plural) trousers that end at or above the knee | Synonyms: short pants, shorts |
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| turnkey | (noun) someone who guards prisoners | Synonyms: gaoler, jailer, jailor, prison guard, screw |
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| twinkle | (noun) merriment expressed by a brightness or gleam or animation of countenance | Synonyms: light, spark, sparkle |
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| (noun) a rapid change in brightness; a brief spark or flash | Synonyms: scintillation, sparkling |
| twinkler | (noun) an object that emits or reflects light in an intermittent flickering manner | - |
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| twinkling | (noun) a very short time (as the time it takes the eye to blink or the heart to beat) | Synonyms: blink of an eye, flash, heartbeat, instant, jiffy, New York minute, split second, trice, wink |
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| unkemptness | (noun) a lack of order and tidiness; not cared for | Synonyms: sloppiness, slovenliness |
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| unkindness | (noun) lack of sympathy | - |
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| unknowing | (noun) ignorance (especially of orthodox beliefs) | Synonyms: ignorantness, nescience, unknowingness |
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| unknowingness | (noun) unconsciousness resulting from lack of knowledge or attention | Synonyms: unawareness |
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| (noun) ignorance (especially of orthodox beliefs) | Synonyms: ignorantness, nescience, unknowing |
| unknown | (noun) a variable whose values are solutions of an equation | Synonyms: unknown quantity |
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| (noun) an unknown and unexplored region | Synonyms: terra incognita, unknown region |
| (noun) anyone who does not belong in the environment in which they are found | Synonyms: alien, stranger |
| uplink | (noun) a transmission from Earth to a spacecraft or the path of such a transmission | - |
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| wank | (noun) slang for masturbation | Synonyms: hand job, jacking off, jerking off |
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| wanker | (noun) terms of abuse for a masturbator | Synonyms: jerk-off, tosser |
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| wink | (noun) a reflex that closes and opens the eyes rapidly | Synonyms: blink, blinking, eye blink, nictation, nictitation, winking |
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| (noun) closing one eye quickly as a signal | - |
| (noun) a very short time (as the time it takes the eye to blink or the heart to beat) | Synonyms: blink of an eye, flash, heartbeat, instant, jiffy, New York minute, split second, trice, twinkling |
| winker | (noun) blind consisting of a leather eyepatch sewn to the side of the halter that prevents a horse from seeing something on either side | Synonyms: blinder, blinker |
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| (noun) a person who winks | - |
| winking | (noun) a reflex that closes and opens the eyes rapidly | Synonyms: blink, blinking, eye blink, nictation, nictitation, wink |
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| winkle | (noun) edible marine gastropod | Synonyms: periwinkle |
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| (noun) small edible marine snail; steamed in wine or baked | Synonyms: periwinkle |
| womankind | (noun) women as distinguished from men | - |
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| wonk | (noun) an insignificant student who is ridiculed as being affected or boringly studious | Synonyms: dweeb, grind, nerd, swot |
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| wrinkle | (noun) a clever method of doing something (especially something new and different) | - |
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| (noun) a minor difficulty | - |
| (noun) a slight depression or fold in the smoothness of a surface | Synonyms: crease, crinkle, furrow, line, seam |
| yanker | (noun) someone who gives a strong sudden pull | Synonyms: jerker |
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| younker | (noun) a young person (especially a young man or boy) | Synonyms: spring chicken, young person, youth |
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| zinkenite | (noun) a steel grey metallic mineral (a sulphide of lead and antimony) | - |
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| zooplankton | (noun) animal constituent of plankton; mainly small crustaceans and fish larvae | - |
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