| librarianship | (noun) the position of librarian | - |
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| library | (noun) a depository built to contain books and other materials for reading and study | Synonyms: depository library |
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| (noun) a room where books are kept | - |
| (noun) a building that houses a collection of books and other materials | - |
| (noun) a collection of literary documents or records kept for reference or borrowing | - |
| (noun) (computing) a collection of standard programs and subroutines that are stored and available for immediate use | Synonyms: program library, subroutine library |
| libration | (noun) (astronomy) a real or apparent slow oscillation of a moon or satellite | - |
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| librettist | (noun) author of words to be set to music in an opera or operetta | - |
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| libretto | (noun) the words of an opera or musical play | - |
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| libtard | (noun) A pejorative term for a liberal | - |
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| licence | (noun) a legal document giving official permission to do something | Synonyms: license, permit |
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| (noun) freedom to deviate deliberately from normally applicable rules or practices (especially in behavior or speech) | Synonyms: license |
| (noun) excessive freedom; lack of due restraint | Synonyms: license |
| license | (noun) the act of giving a formal (usually written) authorization | Synonyms: permission, permit |
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| (noun) a legal document giving official permission to do something | Synonyms: licence, permit |
| (noun) freedom to deviate deliberately from normally applicable rules or practices (especially in behavior or speech) | Synonyms: licence |
| (noun) excessive freedom; lack of due restraint | Synonyms: licence |
| licensee | (noun) someone to whom a license is granted | - |
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| licenser | (noun) an official who can issue a license or give authoritative permission (especially one who licenses publications) | - |
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| licentiate | (noun) holds a license (degree) from a (European) university | - |
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| licentiousness | (noun) dissolute indulgence in sensual pleasure | Synonyms: dissipation, dissolution, looseness, profligacy |
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| (noun) the quality of being lewd and lascivious | Synonyms: wantonness |
| lichee | (noun) Chinese fruit having a thin brittle shell enclosing a sweet jellylike pulp and a single seed; often dried | Synonyms: leechee, lichi, litchee, litchi, litchi nut, lychee |
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| (noun) Chinese tree cultivated especially in Philippines and India for its edible fruit; sometimes placed in genus Nephelium | Synonyms: litchi, Litchi chinensis, litchi tree, Nephelium litchi |
| lichen | (noun) any thallophytic plant of the division Lichenes; occur as crusty patches or bushy growths on tree trunks or rocks or bare ground etc. | - |
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| (noun) any of several eruptive skin diseases characterized by hard thick lesions grouped together and resembling lichens growing on rocks | - |
| lichgate | (noun) a roofed gate to a churchyard, formerly used as a temporary shelter for the bier during funerals | Synonyms: lychgate |
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| lichi | (noun) Chinese fruit having a thin brittle shell enclosing a sweet jellylike pulp and a single seed; often dried | Synonyms: leechee, lichee, litchee, litchi, litchi nut, lychee |
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| licitness | (noun) the quality of strictly conforming to law | - |
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| lick | (noun) touching with the tongue | Synonyms: lap |
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| (noun) (boxing) a blow with the fist | Synonyms: biff, clout, poke, punch, slug |
| (noun) a salt deposit that animals regularly lick | Synonyms: salt lick |
| licking | (noun) the act of inflicting corporal punishment with repeated blows | Synonyms: beating, drubbing, lacing, thrashing, trouncing, whacking |
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| (noun) an unsuccessful ending to a struggle or contest | Synonyms: defeat |
| licorice | (noun) a black candy flavored with the dried root of the licorice plant | Synonyms: liquorice |
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| (noun) deep-rooted coarse-textured plant native to the Mediterranean region having blue flowers and pinnately compound leaves; widely cultivated in Europe for its long thick sweet roots | Synonyms: Glycyrrhiza glabra, liquorice |
| lid | (noun) a movable top or cover (hinged or separate) for closing the opening at the top of a box, chest, jar, pan, etc. | - |
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| (noun) headdress that protects the head from bad weather; has shaped crown and usually a brim | Synonyms: chapeau, hat |
| (noun) either of two folds of skin that can be moved to cover or open the eye | Synonyms: eyelid, palpebra |
| lidar | (noun) a measuring system that detects and locates objects on the same principle as radar but uses light from a laser; a potential technology for detecting air turbulence that can affect aircraft | - |
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| lido | (noun) a recreational facility including a swimming pool for water sports | - |
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| lie | (noun) a statement that deviates from or perverts the truth | Synonyms: prevarication |
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| (noun) position or manner in which something is situated | - |
| liebfraumilch | (noun) a sweetened Rhenish wine (especially one from Hesse in western Germany) | - |
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| lied | (noun) a German art song of the 19th century for voice and piano | - |
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| liege | (noun) a person holding a fief; a person who owes allegiance and service to a feudal lord | Synonyms: feudatory, liege subject, liegeman, vassal |
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| (noun) a feudal lord entitled to allegiance and service | Synonyms: liege lord |
| liegeman | (noun) a person holding a fief; a person who owes allegiance and service to a feudal lord | Synonyms: feudatory, liege, liege subject, vassal |
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| lien | (noun) the right to take another's property if an obligation is not discharged | - |
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| (noun) a large dark-red oval organ on the left side of the body between the stomach and the diaphragm; produces cells involved in immune responses | Synonyms: spleen |
| lieu | (noun) the post or function properly or customarily occupied or served by another | Synonyms: place, position, stead |
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| lieutenancy | (noun) the position of a lieutenant | - |
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| lieutenant | (noun) an officer in a police force | Synonyms: police lieutenant |
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| (noun) a commissioned military officer | - |
| (noun) an assistant with power to act when his superior is absent | Synonyms: deputy |
| (noun) an officer holding a commissioned rank in the United States Navy or the United States Coast Guard; below lieutenant commander and above lieutenant junior grade | - |
| life | (noun) living things collectively | - |
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| (noun) animation and energy in action or expression | Synonyms: liveliness, spirit, sprightliness |
| (noun) the experience of being alive; the course of human events and activities | Synonyms: living |
| (noun) an account of the series of events making up a person's life | Synonyms: biography, life history, life story |
| (noun) a motive for living | - |
| (noun) a living person | - |
| (noun) the organic phenomenon that distinguishes living organisms from nonliving ones | - |
| (noun) the condition of living or the state of being alive | Synonyms: aliveness, animation, living |
| (noun) a characteristic state or mode of living | - |
| (noun) the course of existence of an individual; the actions and events that occur in living | - |
| (noun) the period during which something is functional (as between birth and death) | Synonyms: life-time, lifespan, lifetime |
| (noun) the period between birth and the present time | - |
| (noun) the period from the present until death | - |
| (noun) a prison term lasting as long as the prisoner lives | Synonyms: life sentence |
| lifeblood | (noun) an essential or life-giving force | - |
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| (noun) the blood considered as the seat of vitality | - |
| lifeboat | (noun) a strong sea boat designed to rescue people from a sinking ship | - |
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| lifeguard | (noun) an attendant employed at a beach or pool to protect swimmers from accidents | Synonyms: lifesaver |
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| lifelessness | (noun) not having life | Synonyms: inanimateness |
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| (noun) a state of no motion or movement | Synonyms: motionlessness, stillness |
| lifeline | (noun) line thrown from a vessel that people can cling to in order to save themselves from drowning | - |
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| (noun) line that raises or lowers a deep-sea diver | - |
| (noun) support that enables people to survive or to continue doing something (often by providing an essential connection) | - |
| (noun) a crease on the palm; its length is said by palmists to indicate how long you will live | Synonyms: life line, line of life |
| lifer | (noun) a prisoner serving a term of life imprisonment | - |
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| lifesaver | (noun) a life preserver in the form of a ring of buoyant material | Synonyms: life belt, life buoy, life ring |
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| (noun) an attendant employed at a beach or pool to protect swimmers from accidents | Synonyms: lifeguard |
| lifesaving | (noun) saving the lives of drowning persons | - |
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| lifespan | (noun) the period during which something is functional (as between birth and death) | Synonyms: life-time, life, lifetime |
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| lifestyle | (noun) a manner of living that reflects the person's values and attitudes | Synonyms: life-style, life style, modus vivendi |
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| lifetime | (noun) the period during which something is functional (as between birth and death) | Synonyms: life-time, life, lifespan |
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| lifework | (noun) the principal work of your career | - |
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| lift | (noun) the act of raising something | Synonyms: heave, raise |
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| (noun) plastic surgery to remove wrinkles and other signs of aging from your face; an incision is made near the hair line and skin is pulled back and excess tissue is excised | Synonyms: cosmetic surgery, face lift, face lifting, facelift, nip and tuck, rhytidectomy, rhytidoplasty |
| (noun) the act of giving temporary assistance | - |
| (noun) a ride in a car | - |
| (noun) transportation of people or goods by air (especially when other means of access are unavailable) | Synonyms: airlift |
| (noun) lifting device consisting of a platform or cage that is raised and lowered mechanically in a vertical shaft in order to move people from one floor to another in a building | Synonyms: elevator |
| (noun) a powered conveyance that carries skiers up a hill | Synonyms: ski lift, ski tow |
| (noun) one of the layers forming the heel of a shoe or boot | - |
| (noun) a device worn in a shoe or boot to make the wearer look taller or to correct a shortened leg | - |
| (noun) the event of something being raised upward | Synonyms: elevation, raising |
| (noun) a wave that lifts the surface of the water or ground | Synonyms: rise |
| (noun) the component of the aerodynamic forces acting on an airfoil that opposes gravity | Synonyms: aerodynamic lift |
| lifter | (noun) an athlete who lifts barbells | Synonyms: weightlifter |
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| (noun) a thief who steals goods that are in a store | Synonyms: booster, shoplifter |
| liftgate | (noun) a sloping rear car door that is lifted to open | Synonyms: hatch, hatchback, hatchback door |
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| liftman | (noun) a man employed to operate an elevator | Synonyms: elevator boy, elevator man |
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| liftoff | (noun) the initial ascent of a rocket from its launching pad | - |
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| ligament | (noun) any connection or unifying bond | - |
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| (noun) a sheet or band of tough fibrous tissue connecting bones or cartilages or supporting muscles or organs | - |
| ligan | (noun) goods (or wreckage) on the sea bed that is attached to a buoy so that it can be recovered | Synonyms: lagan, lagend |
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| ligand | (noun) a substance (an atom or molecule or radical or ion) that forms a complex around a central atom | - |
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| ligation | (noun) (surgery) tying a duct or blood vessel with a ligature (as to prevent bleeding during surgery) | - |
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| ligature | (noun) the act of tying or binding things together | Synonyms: tying |
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| (noun) something used to tie or bind | Synonyms: binder |
| (noun) thread used by surgeons to bind a vessel (as to constrict the flow of blood) | - |
| (noun) a metal band used to attach a reed to the mouthpiece of a clarinet or saxophone | - |
| (noun) (music) a group of notes connected by a slur | - |
| (noun) character consisting of two or more letters combined into one | - |
| liger | (noun) offspring of a male lion and a female tiger | - |
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| light | (noun) any device serving as a source of illumination | Synonyms: light source |
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| (noun) a device for lighting or igniting fuel or charges or fires | Synonyms: igniter, ignitor, lighter |
| (noun) the visual effect of illumination on objects or scenes as created in pictures | Synonyms: lightness |
| (noun) the quality of being luminous; emitting or reflecting light | Synonyms: brightness, brightness level, luminance, luminosity, luminousness |
| (noun) merriment expressed by a brightness or gleam or animation of countenance | Synonyms: spark, sparkle, twinkle |
| (noun) mental understanding as an enlightening experience | - |
| (noun) a particular perspective or aspect of a situation | - |
| (noun) public awareness | - |
| (noun) a visual warning signal | - |
| (noun) an illuminated area | - |
| (noun) a person regarded very fondly | - |
| (noun) (physics) electromagnetic radiation that can produce a visual sensation | Synonyms: visible light, visible radiation |
| (noun) having abundant light or illumination | Synonyms: lighting |
| (noun) a condition of spiritual awareness; divine illumination | Synonyms: illumination |
| lightbulb | (noun) electric lamp consisting of a transparent or translucent glass housing containing a wire filament (usually tungsten) that emits light when heated by electricity | Synonyms: bulb, electric-light bulb, electric light, incandescent lamp, light bulb |
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| lightener | (noun) any type of lightening agent that can be used to brighten the appearance of hair, skin, wood and other surfaces. | - |
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| lightening | (noun) changing to a lighter color | Synonyms: whitening |
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| (noun) descent of the uterus into the pelvic cavity that occurs late in pregnancy; the fetus is said to have dropped | - |
| lighter | (noun) a device for lighting or igniting fuel or charges or fires | Synonyms: igniter, ignitor, light |
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| (noun) a flatbottom boat for carrying heavy loads (especially on canals) | Synonyms: barge, flatboat, hoy |
| (noun) a substance used to ignite or kindle a fire | Synonyms: igniter, ignitor |
| lighterage | (noun) the transportation of goods on a lighter | - |
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| (noun) the fee charged for carrying goods in lighters | - |
| lighterman | (noun) someone who operates a barge | Synonyms: bargee, bargeman |
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| lightheadedness | (noun) a frivolous lack of prudence | - |
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| (noun) a reeling sensation; a feeling that you are about to fall | Synonyms: dizziness, giddiness, vertigo |
| lightheartedness | (noun) the cheerful feeling you have when nothing is troubling you | Synonyms: carefreeness, insouciance, lightsomeness |
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| lighthouse | (noun) a tower with a light that gives warning of shoals to passing ships | Synonyms: beacon, beacon light, pharos |
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| lighting | (noun) the act of setting something on fire | Synonyms: firing, ignition, inflammation, kindling |
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| (noun) the craft of providing artificial light | - |
| (noun) apparatus for supplying artificial light effects for the stage or a film | - |
| (noun) having abundant light or illumination | Synonyms: light |
| lightlessness | (noun) total absence of light | Synonyms: black, blackness, pitch blackness, total darkness |
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| lightness | (noun) the trait of being lighthearted and frivolous | Synonyms: lightsomeness |
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| (noun) the visual effect of illumination on objects or scenes as created in pictures | Synonyms: light |
| (noun) the property of being comparatively small in weight | Synonyms: weightlessness |
| (noun) having a light color | - |
| (noun) the gracefulness of a person or animal that is quick and nimble | Synonyms: agility, legerity, lightsomeness, nimbleness |
| (noun) a feeling of joy and pride | Synonyms: elation, high spirits |
| lightning | (noun) the flash of light that accompanies an electric discharge in the atmosphere (or something resembling such a flash); can scintillate for a second or more | - |
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| (noun) abrupt electric discharge from cloud to cloud or from cloud to earth accompanied by the emission of light | - |
| lightship | (noun) a ship equipped like a lighthouse and anchored where a permanent lighthouse would be impracticable | - |
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| lightsomeness | (noun) the trait of being lighthearted and frivolous | Synonyms: lightness |
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| (noun) the gracefulness of a person or animal that is quick and nimble | Synonyms: agility, legerity, lightness, nimbleness |
| (noun) the cheerful feeling you have when nothing is troubling you | Synonyms: carefreeness, insouciance, lightheartedness |
| lightstick | (noun) A portable rod used for illumination. | - |
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| lightweight | (noun) A weight class division in combat sports, for fighters heavier than those in the featherweight division and lighter than those in the welterweight division. | - |
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| (noun) a professional boxer who weighs between 131 and 135 pounds | - |
| (noun) a wrestler who weighs 139-154 pounds | - |
| (noun) someone who is unimportant but cheeky and presumptuous | Synonyms: jackanapes, whippersnapper |
| (noun) an amateur boxer who weighs no more than 132 pounds | - |
| lightwood | (noun) tall Australian acacia yielding highly valued black timber | Synonyms: Acacia melanoxylon |
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| ligne | (noun) a linear unit (1/40 inch) used to measure diameter of buttons | - |
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| lignin | (noun) a complex polymer; the chief constituent of wood other than carbohydrates; binds to cellulose fibers to harden and strengthen cell walls of plants | - |
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| lignite | (noun) intermediate between peat and bituminous coal | Synonyms: brown coal, wood coal |
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| lignosae | (noun) a category in some early taxonomies | - |
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| lignum | (noun) woody tissue | - |
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| ligule | (noun) (botany) any appendage to a plant that is shaped like a strap | - |
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| like | (noun) a kind of person | Synonyms: ilk |
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| (noun) a similar kind | Synonyms: the like, the likes of |
| likelihood | (noun) the probability of a specified outcome | Synonyms: likeliness |
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| likeliness | (noun) the probability of a specified outcome | Synonyms: likelihood |
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| likeness | (noun) picture consisting of a graphic image of a person or thing | Synonyms: semblance |
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| (noun) similarity in appearance or character or nature between persons or things | Synonyms: alikeness, similitude |
| likening | (noun) the act of comparing similarities | - |
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| liking | (noun) a feeling of pleasure and enjoyment | - |
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| likuta | (noun) 100 makuta equal 1 zaire in Zaire | - |
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| lilac | (noun) any of various plants of the genus Syringa having large panicles of usually fragrant flowers | - |
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| lilangeni | (noun) the basic unit of money in Swaziland; equal to 100 cents | - |
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| liliopsid | (noun) a monocotyledonous flowering plant; the stem grows by deposits on its inside | Synonyms: endogen, monocot, monocotyledon |
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| lilliputian | (noun) a very small person (resembling a Lilliputian) | - |
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| lilt | (noun) a jaunty rhythm in music | Synonyms: swing |
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| lily | (noun) any liliaceous plant of the genus Lilium having showy pendulous flowers | - |
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| lilyturf | (noun) Asiatic perennial tufted herb with grasslike evergreen foliage and clusters of dark mauve grapelike flowers; grown as ground cover | Synonyms: lily turf, Liriope muscari |
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| liman | (noun) a long narrow lagoon near the mouth of a river | - |
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| limb | (noun) any projection that is thought to resemble a human arm | Synonyms: arm, branch |
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| (noun) the graduated arc that is attached to an instrument for measuring angles | - |
| (noun) either of the two halves of a bow from handle to tip | - |
| (noun) one of the jointed appendages of an animal used for locomotion or grasping: arm, leg, wing, flipper | - |
| (noun) (astronomy) the circumferential edge of the apparent disc of the sun or the moon or a planet | - |
| (noun) any of the main branches arising from the trunk or a bough of a tree | Synonyms: tree branch |
| limber | (noun) a two-wheeled horse-drawn vehicle used to pull a field gun or caisson | - |
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| limbers | (noun) a channel or gutter on either side of a ship's keelson; carries bilge water into the pump well | - |
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| limbo | (noun) (theology) in Roman Catholicism, the place of unbaptized but innocent or righteous souls (such as infants and virtuous individuals) | - |
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| (noun) an imaginary place for lost or neglected things | - |
| (noun) the state of being disregarded or forgotten | Synonyms: oblivion |