| keeshond | (noun) a spitz-like dog having a shaggy greyish coat and tightly curled tail originating in Holland | - |
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| keloid | (noun) raised pinkish scar tissue at the site of an injury; results from excessive tissue repair | Synonyms: cheloid |
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| ketosteroid | (noun) a steroid containing a ketone group | - |
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| keyboard | (noun) holder consisting of an arrangement of hooks on which keys or locks can be hung | - |
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| (noun) device consisting of a set of keys on a piano or organ or typewriter or typesetting machine or computer or the like | - |
| keycard | (noun) a plastic card that has a magnetically coded strip that is scanned in order to operate a mechanism | - |
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| keypad | (noun) a keyboard that is a data input device for computers; arrangement of keys is modelled after the typewriter keyboard | Synonyms: computer keyboard |
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| kickstand | (noun) a swiveling metal rod attached to a bicycle or motorcycle or other two-wheeled vehicle; the rod lies horizontally when not in use but can be kicked into a vertical position as a support to hold the vehicle upright when it is not being ridden | - |
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| kid | (noun) young goat | - |
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| (noun) a young person of either sex | Synonyms: child, fry, minor, nestling, nipper, shaver, small fry, tiddler, tike, tyke, youngster |
| (noun) a human offspring (son or daughter) of any age | Synonyms: child |
| (noun) soft smooth leather from the hide of a young goat | Synonyms: kidskin |
| kind | (noun) a category of things distinguished by some common characteristic or quality | Synonyms: form, sort, variety |
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| kindred | (noun) group of people related by blood or marriage | Synonyms: clan, kin, kin group, kinship group, tribe |
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| kingbird | (noun) large American flycatcher | Synonyms: Tyrannus tyrannus |
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| kingwood | (noun) Brazilian tree yielding a handsome cabinet wood | Synonyms: Dalbergia cearensis, kingwood tree |
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| (noun) handsome violet-streaked wood of the kingwood tree; used especially in cabinetwork | - |
| knapweed | (noun) any of various plants of the genus Centaurea having purple thistlelike flowers | - |
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| knighthood | (noun) aristocrats holding the rank of knight | - |
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| knucklehead | (noun) a stupid person; these words are used to express a low opinion of someone's intelligence | Synonyms: blockhead, bonehead, dumbass, dunce, dunderhead, fuckhead, hammerhead, loggerhead, lunkhead, muttonhead, numskull, shithead |
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| lacepod | (noun) annual herb having pinnatifid basal leaves and slender racemes of small white flowers followed by one-seeded winged silicles | Synonyms: fringepod |
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| lacertid | (noun) Old World terrestrial lizard | Synonyms: lacertid lizard |
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| lacewood | (noun) variably colored and sometimes variegated hard tough elastic wood of a sycamore tree | Synonyms: sycamore |
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| lad | (noun) a male child (a familiar term of address to a boy) | Synonyms: cub, laddie, sonny, sonny boy |
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| (noun) a boy or man | Synonyms: blighter, bloke, chap, cuss, fella, feller, fellow, gent |
| ladybird | (noun) small round bright-colored and spotted beetle that usually feeds on aphids and other insect pests | Synonyms: lady beetle, ladybeetle, ladybird beetle, ladybug |
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| lagend | (noun) goods (or wreckage) on the sea bed that is attached to a buoy so that it can be recovered | Synonyms: lagan, ligan |
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| laggard | (noun) someone who takes more time than necessary; someone who lags behind | Synonyms: dawdler, drone, lagger, poke, trailer |
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| laird | (noun) a landowner | - |
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| lancewood | (noun) source of most of the lancewood of commerce | Synonyms: lancewood tree, Oxandra lanceolata |
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| (noun) durable straight-grained wood of the lacewood tree; used for building and cabinetwork and tools | - |
| land | (noun) agriculture considered as an occupation or way of life | Synonyms: farming |
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| (noun) a politically organized body of people under a single government | Synonyms: body politic, commonwealth, country, nation, res publica, state |
| (noun) the people who live in a nation or country | Synonyms: country, nation |
| (noun) territory over which rule or control is exercised | Synonyms: demesne, domain |
| (noun) the territory occupied by a nation | Synonyms: country, state |
| (noun) the solid part of the earth's surface | Synonyms: dry land, earth, ground, solid ground, terra firma |
| (noun) material in the top layer of the surface of the earth in which plants can grow (especially with reference to its quality or use) | Synonyms: ground, soil |
| (noun) extensive landed property (especially in the country) retained by the owner for his own use | Synonyms: acres, demesne, estate, landed estate |
| (noun) the land on which real estate is located | - |
| (noun) a domain in which something is dominant | Synonyms: kingdom, realm |
| landlord | (noun) a landowner who leases to others | - |
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| laniard | (noun) (nautical) a line used for extending or fastening rigging on ships | Synonyms: lanyard |
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| (noun) a cord worn around the neck to hold a knife or whistle | Synonyms: lanyard |
| (noun) a cord with an attached hook that is used to fire certain types of cannon | Synonyms: lanyard |
| lanthanoid | (noun) any element of the lanthanide series (atomic numbers 57 through 71) | Synonyms: lanthanide, lanthanon, rare-earth element, rare earth |
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| lanyard | (noun) (nautical) a line used for extending or fastening rigging on ships | Synonyms: laniard |
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| (noun) a cord worn around the neck to hold a knife or whistle | Synonyms: laniard |
| (noun) a cord with an attached hook that is used to fire certain types of cannon | Synonyms: laniard |
| lapboard | (noun) writing board used on the lap as a table or desk | - |
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| larboard | (noun) the left side of a ship or aircraft to someone who is aboard and facing the bow or nose | Synonyms: port |
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| lard | (noun) soft white semisolid fat obtained by rendering the fatty tissue of the hog | - |
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| larid | (noun) long-winged web-footed aquatic bird of the gull family | - |
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| lasiocampid | (noun) medium-sized stout-bodied neutral-colored moths with comb-like antennae | Synonyms: lasiocampid moth |
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| launchpad | (noun) a platform from which rockets or space craft are launched | Synonyms: launch area, launch pad, launching pad, pad |
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| laurelwood | (noun) tropical American tree; valued for its hard durable wood | Synonyms: Calophyllum candidissimum, lancewood tree |
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| lead | (noun) the playing of a card to start a trick in bridge | - |
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| (noun) a position of being the initiator of something and an example that others will follow (especially in the phrase `take the lead') | - |
| (noun) a jumper that consists of a short piece of wire | Synonyms: booster cable, jumper cable, jumper lead |
| (noun) thin strip of metal used to separate lines of type in printing | Synonyms: leading |
| (noun) restraint consisting of a rope (or light chain) used to restrain an animal | Synonyms: leash, tether |
| (noun) the timing of ignition relative to the position of the piston in an internal-combustion engine | Synonyms: spark advance |
| (noun) an advantage held by a competitor in a race | - |
| (noun) evidence pointing to a possible solution | Synonyms: track, trail |
| (noun) a news story of major importance | Synonyms: lead story |
| (noun) the introductory section of a story | Synonyms: lead-in, lede |
| (noun) an indication of potential opportunity | Synonyms: confidential information, hint, steer, tip, wind |
| (noun) (baseball) the position taken by a base runner preparing to advance to the next base | - |
| (noun) an actor who plays a principal role | Synonyms: principal, star |
| (noun) (sports) the score by which a team or individual is winning | - |
| (noun) the angle between the direction a gun is aimed and the position of a moving target (correcting for the flight time of the missile) | - |
| (noun) mixture of graphite with clay in different degrees of hardness; the marking substance in a pencil | Synonyms: pencil lead |
| (noun) a soft heavy toxic malleable metallic element; bluish white when freshly cut but tarnishes readily to dull grey | Synonyms: atomic number 82, Pb |
| leasehold | (noun) land or property held under a lease | - |
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| leatherwood | (noun) deciduous shrub of eastern North America having tough flexible branches and pliable bark and small yellow flowers | Synonyms: Dirca palustris, moose-wood, moosewood, ropebark, wicopy |
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| (noun) shrub or small tree of southeastern United States to West Indies and Brazil; grown for the slender racemes of white flowers and orange and crimson foliage | Synonyms: cyrilla, Cyrilla racemiflora, white titi |
| leeward | (noun) the side of something that is sheltered from the wind | Synonyms: lee, lee side |
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| (noun) the direction in which the wind is blowing | - |
| leftfield | (noun) the fielding position of the player on a baseball team who is expected to field balls in the left third of the outfield (looking from home plate) | Synonyms: left field |
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| (noun) the piece of ground in the outfield on the catcher's left | Synonyms: left, left field |
| legend | (noun) brief description accompanying an illustration | Synonyms: caption |
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| (noun) a story about mythical or supernatural beings or events | Synonyms: fable |
| lemonwood | (noun) South African evergreen having hard tough wood | Synonyms: lemon-wood, lemon-wood tree, lemonwood tree, Psychotria capensis |
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| (noun) hard tough elastic wood of the lemonwood tree; used for making bows and fishing rods | - |
| leopard | (noun) large feline of African and Asian forests usually having a tawny coat with black spots | Synonyms: Panthera pardus |
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| (noun) the pelt of a leopard | - |
| leotard | (noun) a tight-fitting garment of stretchy material that covers the body from the shoulders to the thighs (and may have long sleeves or legs reaching down to the ankles); worn by ballet dancers and acrobats for practice or performance | Synonyms: body suit, cat suit, unitard |
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| leporid | (noun) rabbits and hares | Synonyms: leporid mammal |
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| leptodactylid | (noun) toothed frogs: terrestrial or aquatic or arboreal | Synonyms: leptodactylid frog |
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| lettercard | (noun) a postcard that folds so the message is inside | - |
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| letterhead | (noun) a sheet of stationery with name and address of the organization printed at the top | - |
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| libtard | (noun) A pejorative term for a liberal | - |
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| 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 |
| lied | (noun) a German art song of the 19th century for voice and piano | - |
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| lifeblood | (noun) an essential or life-giving force | - |
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| (noun) the blood considered as the seat of vitality | - |
| lifeguard | (noun) an attendant employed at a beach or pool to protect swimmers from accidents | Synonyms: lifesaver |
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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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| lightwood | (noun) tall Australian acacia yielding highly valued black timber | Synonyms: Acacia melanoxylon |
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| likelihood | (noun) the probability of a specified outcome | Synonyms: likeliness |
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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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| limited | (noun) public transport consisting of a fast train or bus that makes only a few scheduled stops | Synonyms: express |
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| lingcod | (noun) food fish of the northern Pacific related to greenlings | Synonyms: Ophiodon elongatus |
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| (noun) the lean flesh of a fish caught off the Pacific coast of the United States | - |
| linseed | (noun) the seed of flax used as a source of oil | Synonyms: flaxseed |
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| lipid | (noun) an oily organic compound insoluble in water but soluble in organic solvents; essential structural component of living cells (along with proteins and carbohydrates) | Synonyms: lipide, lipoid |
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| lipoid | (noun) an oily organic compound insoluble in water but soluble in organic solvents; essential structural component of living cells (along with proteins and carbohydrates) | Synonyms: lipid, lipide |
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| liquid | (noun) a frictionless continuant that is not a nasal consonant (especially `l' and `r') | - |
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| (noun) the state in which a substance exhibits a characteristic readiness to flow with little or no tendency to disperse and relatively high incompressibility | Synonyms: liquid state, liquidity, liquidness |
| (noun) fluid matter having no fixed shape but a fixed volume | - |
| (noun) a substance that is liquid at room temperature and pressure | - |
| livelihood | (noun) the financial means whereby one lives | Synonyms: bread and butter, keep, living, support, sustenance |
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| lizard | (noun) relatively long-bodied reptile with usually two pairs of legs and a tapering tail | - |
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| (noun) a man who idles about in the lounges of hotels and bars in search of women who would support him | Synonyms: lounge lizard |
| load | (noun) weight to be borne or conveyed | Synonyms: burden, loading |
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| (noun) the front part of a guided missile or rocket or torpedo that carries the nuclear or explosive charge or the chemical or biological agents | Synonyms: payload, warhead |
| (noun) goods carried by a large vehicle | Synonyms: cargo, consignment, freight, lading, loading, payload, shipment |
| (noun) electrical device to which electrical power is delivered | - |
| (noun) an onerous or difficult concern | Synonyms: burden, encumbrance, incumbrance, onus |
| (noun) a deposit of valuable ore occurring within definite boundaries separating it from surrounding rocks | Synonyms: lode |
| (noun) the power output of a generator or power plant | - |
| (noun) a quantity that can be processed or transported at one time | Synonyms: loading |
| (noun) an amount of alcohol sufficient to intoxicate | - |
| loanblend | (noun) a word that is composed of parts from different languages (e.g., `monolingual' has a Greek prefix and a Latin root) | Synonyms: hybrid, loan-blend |
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| loanword | (noun) a word borrowed from another language; e.g. `blitz' is a German word borrowed into modern English | Synonyms: loan |
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| locoweed | (noun) street names for marijuana | Synonyms: dope, gage, grass, green goddess, Mary Jane, pot, sens, sess, skunk, smoke, weed |
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| (noun) any of several leguminous plants of western North America causing locoism in livestock | Synonyms: crazy weed, crazyweed |
| loggerhead | (noun) very large carnivorous sea turtle; wide-ranging in warm open seas | Synonyms: Caretta caretta, loggerhead turtle |
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| (noun) a stupid person; these words are used to express a low opinion of someone's intelligence | Synonyms: blockhead, bonehead, dumbass, dunce, dunderhead, fuckhead, hammerhead, knucklehead, lunkhead, muttonhead, numskull, shithead |
| logwood | (noun) spiny shrub or small tree of Central America and West Indies having bipinnate leaves and racemes of small bright yellow flowers and yielding a hard brown or brownish-red heartwood used in preparing a black dye | Synonyms: bloodwood tree, campeachy, Haematoxylum campechianum, logwood tree |
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| (noun) very hard brown to brownish-red heartwood of a logwood tree; used in preparing a purplish red dye | - |
| longbeard | (noun) a stoneware drinking jug with a long neck; decorated with a caricature of Cardinal Bellarmine (17th century) | Synonyms: bellarmine, greybeard, long-beard |
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| longhand | (noun) rapid handwriting in which letters are set down in full and are cursively connected within words without lifting the writing implement from the paper | Synonyms: cursive, cursive script, running hand |
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| lord | (noun) a person who has general authority over others | Synonyms: master, overlord |
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| lotusland | (noun) an idyllic realm of contentment and self-indulgence | Synonyms: lotus land |
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| lovebird | (noun) small African parrot noted for showing affection for their mates | - |
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| (noun) small Australian parakeet usually light green with black and yellow markings in the wild but bred in many colors | Synonyms: budgereegah, budgerigar, budgerygah, budgie, grass parakeet, Melopsittacus undulatus, shell parakeet |
| lowland | (noun) low level country | - |
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| lumberyard | (noun) a workplace where lumber is stocked for sale | - |
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| lunkhead | (noun) a stupid person; these words are used to express a low opinion of someone's intelligence | Synonyms: blockhead, bonehead, dumbass, dunce, dunderhead, fuckhead, hammerhead, knucklehead, loggerhead, muttonhead, numskull, shithead |
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| lycaenid | (noun) any of various butterflies of the family Lycaenidae | Synonyms: lycaenid butterfly |
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| lycopod | (noun) primitive evergreen moss-like plant with spores in club-shaped strobiles | Synonyms: club-moss, club moss |
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| lygaeid | (noun) a true bug: usually bright-colored; pest of cultivated crops and some fruit trees | Synonyms: lygaeid bug |
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| lymantriid | (noun) dull-colored moth whose larvae have tufts of hair on the body and feed on the leaves of many deciduous trees | Synonyms: tussock moth |
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| lyrebird | (noun) Australian bird that resembles a pheasant; the courting male displays long tail feathers in a lyre shape | - |
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| machilid | (noun) wingless insect living in dark moist places as under dead tree trunks; they make erratic leaps when disturbed | Synonyms: jumping bristletail |
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| maenad | (noun) (Greek mythology) a woman participant in the orgiastic rites of Dionysus | - |
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| (noun) an unnaturally frenzied or distraught woman | - |
| magnoliopsid | (noun) flowering plant with two cotyledons; the stem grows by deposit on its outside | Synonyms: dicot, dicotyledon, exogen |
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| maid | (noun) an unmarried girl (especially a virgin) | Synonyms: maiden |
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| (noun) a female domestic | Synonyms: amah, housemaid, maidservant |
| maidenhead | (noun) a fold of tissue that partly covers the entrance to the vagina of a virgin | Synonyms: hymen, virginal membrane |
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| maidenhood | (noun) the childhood of a girl | Synonyms: girlhood, maidhood |
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| maidhood | (noun) the childhood of a girl | Synonyms: girlhood, maidenhood |
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| maimed | (noun) people who are wounded | Synonyms: wounded |
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| mainland | (noun) the main land mass of a country or continent; as distinguished from an island or peninsula | - |
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| mallard | (noun) wild dabbling duck from which domestic ducks are descended; widely distributed | Synonyms: Anas platyrhynchos |
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| malted | (noun) a milkshake made with malt powder | Synonyms: malt, malted milk |
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| mangold | (noun) beet with a large yellowish root; grown chiefly as cattle feed | Synonyms: Beta vulgaris vulgaris, mangel-wurzel, mangold-wurzel |
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| manhood | (noun) the status of being a man | - |
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| (noun) the quality of being human | Synonyms: humanity, humanness |
| (noun) the state of being a man; manly qualities | - |
| manifold | (noun) a pipe that has several lateral outlets to or from other pipes | - |
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| (noun) a set of points such as those of a closed surface or an analogue in three or more dimensions | - |
| (noun) a lightweight paper used with carbon paper to make multiple copies | Synonyms: manifold paper |
| mankind | (noun) all of the living human inhabitants of the earth | Synonyms: human beings, human race, humanity, humankind, humans, man, world |
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