| light | (adjective) of comparatively little physical weight or density | - |
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| (adjective) psychologically light; especially free from sadness or troubles | - |
| (adjective) not great in degree or quantity or number | - |
| (adjective) of the military or industry; using (or being) relatively small or light arms or equipment | - |
| (adjective) (used of color) having a relatively small amount of coloring agent | Synonyms: light-colored |
| (adjective) characterized by or emitting light | - |
| (adjective) (physics, chemistry) not having atomic weight greater than average | - |
| (adjective) of little intensity or power or force | - |
| (adjective) easily assimilated in the alimentary canal; not rich or heavily seasoned | - |
| (adjective) silly or trivial | Synonyms: idle |
| (adjective) weak and likely to lose consciousness | Synonyms: faint, light-headed, lightheaded, swooning |
| (adjective) having little importance | - |
| (adjective) less than the correct or legal or full amount often deliberately so | Synonyms: scant, short |
| (adjective) designed for ease of movement or to carry little weight | - |
| (adjective) moving easily and quickly; nimble | Synonyms: lightsome, tripping |
| (adjective) (used of soil) loose and large-grained in consistency | - |
| (adjective) having relatively few calories | Synonyms: calorie-free, lite, low-cal |
| (adjective) (of sound or color) free from anything that dulls or dims | Synonyms: clean, clear, unclouded |
| (adjective) (of sleep) easily disturbed | Synonyms: wakeful |
| (adjective) marked by temperance in indulgence | Synonyms: abstemious |
| (adjective) very thin and insubstantial | - |
| (adjective) casual and unrestrained in sexual behavior | Synonyms: easy, loose, promiscuous, sluttish, wanton |
| (adjective) demanding little effort; not burdensome | - |
| (adjective) (used of vowels or syllables) pronounced with little or no stress | Synonyms: unaccented, weak |
| (adjective) intended primarily as entertainment; not serious or profound | - |
| (noun) any device serving as a source of illumination | Synonyms: light source |
| (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 |
| (adverb) with few burdens | Synonyms: lightly |
| (verb) introduce light into | Synonyms: illume, illuminate, illumine, light up |
| (verb) start or maintain a fire in | Synonyms: fire, ignite |
| (verb) begin to smoke | Synonyms: fire up, light up |
| (verb) to come to rest, settle | Synonyms: alight, perch |
| (verb) alight from (a horse) | Synonyms: dismount, get down, get off, unhorse |
| (verb) fall to somebody by assignment or lot; passed | Synonyms: fall |
| (verb) cause to start burning; subject to fire or great heat | Synonyms: ignite |
| 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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| lighted | (adjective) set afire or burning | Synonyms: lit |
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| (adjective) provided with artificial light | Synonyms: illuminated, lit, well-lighted |
| lighten | (verb) make more cheerful through the use of color | Synonyms: brighten, lighten up |
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| (verb) become lighter | Synonyms: lighten up |
| (verb) alleviate or remove (pressure or stress) or make less oppressive | Synonyms: relieve |
| (verb) become more cheerful | Synonyms: buoy up, lighten up |
| (verb) reduce the weight on; make lighter | - |
| (verb) make more cheerful | Synonyms: buoy up, lighten up |
| 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 |
| (verb) transport in a flatbottom boat | - |
| 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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| lightheaded | (adjective) lacking seriousness; given to frivolity | Synonyms: airheaded, dizzy, empty-headed, featherbrained, giddy, light-headed, silly |
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| (adjective) weak and likely to lose consciousness | Synonyms: faint, light-headed, light, swooning |
| 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 |
| lighthearted | (adjective) carefree and happy and lighthearted | Synonyms: blithe, blithesome, light-hearted, lightsome |
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| 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 |
| lightless | (adjective) without illumination | Synonyms: unilluminated, unlighted, unlit |
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| (adjective) giving no light | - |
| lightlessness | (noun) total absence of light | Synonyms: black, blackness, pitch blackness, total darkness |
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| lightly | (adverb) with little weight or force | Synonyms: gently, softly |
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| (adverb) indulging with temperance | - |
| (adverb) with few burdens | Synonyms: light |
| (adverb) in a small quantity or extent | Synonyms: thinly |
| (adverb) with indifference or without dejection | - |
| (adverb) to a slight degree | - |
| (adverb) without good reason | - |
| 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 | - |
| lightproof | (adjective) not penetrable by light | Synonyms: light-tight |
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| lightship | (noun) a ship equipped like a lighthouse and anchored where a permanent lighthouse would be impracticable | - |
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| lightsome | (adjective) carefree and happy and lighthearted | Synonyms: blithe, blithesome, light-hearted, lighthearted |
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| (adjective) moving easily and quickly; nimble | Synonyms: light, tripping |
| lightsomely | (adverb) in a light-hearted manner | Synonyms: light-heartedly |
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| (adverb) moving with quick light steps | Synonyms: trippingly |
| 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 | (adjective) weighing relatively little compared with another item or object of similar use | - |
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| (adjective) having no importance or influence | - |
| (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. | - |
| (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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