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1. Dictionary

   light

   /līt/

   noun

   • 1. the natural agent that stimulates sight and makes things visible: "the light of the sun" Similar illuminationbrightnessluminescenceluminosityshininggleaminggleambrillianceradiancelusterglowingglowblazeglaredazzleincandescencephosphorescencesunlightmoonlightstarlightlamplightfirelightelectric lightgaslightray of lightshaft of lightbeam of lightrare:effulgencerefulgencelambencyfulgurationdaylightlight of daynatural lightsunlightdaylight hoursdaytimedayhours of sunlightOpposite darknessdarknessnighttime
   • ▪ a source of illumination, especially an electric lamp: "a light came on in his room" Similar lampflashlightheadlightheadlampsidelightwall lightstreet lightfloodlightlanterncandletaperbeacontorchstandard lamp
   • ▪ decorative illuminations: "Christmas lights"
   • ▪ a traffic light: "turn right at the light"
   • ▪ the amount or quality of light in a place: "the plant requires good light"
   • 2. an expression in someone's eyes indicating a particular emotion or mood: "a shrewd light entered his eyes"
   • ▪ a person's opinions, standards, and abilities: "leaving the police to do the job according to their lights" Similar talentskillabilityintelligencemental powersintellectknowledgeunderstanding
   • 3. understanding of a problem or mystery; enlightenment: "she saw light dawn on the woman's face" Similar aspectangleslantapproachinterpretationviewpointstandpointcontextpoint of viewvantage pointappearanceguisehuecomplexionunderstandingenlightenmentilluminationcomprehensioninsightawarenessknowledgeelucidationexplanationclarificationedificationOpposite ignorance
   • ▪ spiritual illumination by divine truth.
   • 4. an area of something that is brighter or paler than its surroundings: "sunshine will brighten the natural lights in your hair"
   • 5. a device that makes something start burning, as a match, lighter, or flame: "he asked me for a light" Similar match(cigarette) lighterflamesparksource of fire
   • 6. a window or opening in a wall to let light in: "the bedroom has a wide bay with leaded lights"
   • ▪ any of the perpendicular divisions of a mullioned window.
   • ▪ any of the panes of glass forming the roof or side of a greenhouse or the top of a cold frame.
   • 7. a person notable or eminent in a particular sphere of activity or place: "volunteers have been the shining lights of the community" Similar expertauthoritymasterleaderguruleading lightguiding lightluminarycelebritydignitarypublic figureworthyVIPbig namestarinformal:bigwigbig gunbig shotbig noiseceleb

   verb

   • 1. provide with light or lighting; illuminate: "the room was lighted by a number of small lamps"
   • ▪ switch on (an electric light): "only one of the table lamps was lit"
   • 2. make (something) start burning; ignite: "Allen gathered sticks and lit a fire"
   • ▪ begin to burn; be ignited: "the gas wouldn't light properly"

   adjective

   • 1. having a considerable or sufficient amount of natural light; not dark: "the bedrooms are light and airy" Similar brightfull of lightwell litwell lightedwell illuminatedsunnysunshinyundimmedbrilliantOpposite darkgloomy
   • 2. (of a color) pale: "her eyes were light blue" Similar light-coloredlight-tonedpalepale-coloredpastelpastel-coloredwhitishfadedfaintweakbleachedfairlight-coloredblondgoldenflaxenyellowOpposite darkdarkbrunette

   Word Origin Old Englishlēoht, līht (noun and adjective), līhtan (verb), of Germanic origin; related to Dutch licht and German Licht, from an Indo-European root shared by Greek leukos ‘white’ and Latin lux ‘light’.

   Derivatives

   • 1. lightish adjective
   • 2. lightless adjective

   Scrabble Points: 9

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2. www.merriam-webster.com › dictionary › lightLight Definition & Meaning - Merriam-Webster

   www.merriam-webster.com › dictionary › light

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   1. a. : something that makes vision possible. b. : the sensation aroused by stimulation of the visual receptors. c. : electromagnetic radiation of any wavelength that travels in a vacuum with a speed of 299,792,458 meters (about 186,000 miles) per second. specifically : such radiation that is visible to the human eye. 2.

3. www.britannica.com › science › lightLight | Definition, Properties, Physics, Characteristics, Types...

   www.britannica.com › science › light

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   Jun 11, 2024 · light, electromagnetic radiation that can be detected by the human eye. Electromagnetic radiation occurs over an extremely wide range of wavelengths, from gamma rays with wavelengths less than about 1 × 10 −11 metre to radio waves measured in metres.

4. dictionary.cambridge.org › dictionary › englishLIGHT | English meaning - Cambridge Dictionary

   dictionary.cambridge.org › dictionary › english

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   light noun (BRIGHTNESS) Add to word list. B1 [ U ] the brightness that comes from the sun, fire, etc. and from electrical devices, and that allows things to be seen: a bright light. fluorescent / ultraviolet light. a beam / ray of light. Light was streaming in through the open door.

5. www.dictionary.com › browse › lightLIGHT Definition & Meaning | Dictionary.com

   www.dictionary.com › browse › light

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   Light definition: something that makes things visible or affords illumination. See examples of LIGHT used in a sentence.

6. www.collinsdictionary.com › dictionary › englishLIGHT definition and meaning | Collins English Dictionary

   www.collinsdictionary.com › dictionary › english

   • Cached

   Light is the brightness that lets you see things. Light comes from sources such as the sun, moon, lamps, and fire.

7. www.vocabulary.com › dictionary › lightLight - Definition, Meaning & Synonyms | Vocabulary.com

   www.vocabulary.com › dictionary › light

   Definitions of light. noun. (physics) electromagnetic radiation that can produce a visual sensation. “the light was filtered through a soft glass window” synonyms: visible light, visible radiation. see more. noun. the quality of being luminous; emitting or reflecting light. synonyms: brightness, brightness level, luminance, luminosity, luminousness

8. www.britannica.com › dictionary › lightLight Definition & Meaning | Britannica Dictionary

   www.britannica.com › dictionary › light

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   LIGHT meaning: 1 : the form of energy that makes it possible to see things the brightness produced by the sun, by fire, by a lamp, etc. sometimes used figuratively; 2 : a source of light (such as an electric lamp)

9. en.wikipedia.org › wiki › LightLight - Wikipedia

   en.wikipedia.org › wiki › Light

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   Light, visible light, or visible radiation is electromagnetic radiation that can be perceived by the human eye. Visible light spans the visible spectrum and is usually defined as having wavelengths in the range of 400–700 nanometres (nm), corresponding to frequencies of 750–420 terahertz.

10. dictionary.cambridge.org › dictionary › learner-englishLIGHT | meaning - Cambridge Learner's Dictionary

    dictionary.cambridge.org › dictionary › learner-english

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    LIGHT definition: 1. the brightness that shines from the sun, from fire, or from electrical equipment, allowing you…. Learn more.

11. www.thefreedictionary.com › lightLight - definition of light by The Free Dictionary

    www.thefreedictionary.com › light

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    n. 1. the medium of illumination that makes sight possible. 2. (General Physics) Also called: visible radiation electromagnetic radiation that is capable of causing a visual sensation and has wavelengths from about 380 to about 780 nanometres.