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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.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

3. dictionary.cambridge.org › us › dictionaryLIGHT | definition in the Cambridge Learner’s Dictionary

   dictionary.cambridge.org › us › dictionary

   • Cached

   light noun (BRIGHTNESS) Add to word list. Add to word list. B1. the brightness that shines from the sun, from fire, or from electrical equipment, allowing you to see things: bright / dim light. fluorescent / ultraviolet light. a beam / ray of light. Light was streaming in through the open door.

4. www.britannica.com › summary › lightLight and its properties | Britannica

   www.britannica.com › summary › light

   • Cached

   light, That portion of the electromagnetic spectrum visible to the human eye. It ranges from the red end to the violet end of the spectrum, with wavelengths from 700 to 400 nanometres and frequencies from 4.3 × 10 14 to 7.5 × 10 14 Hz.

5. www.sciencefocus.com › science › what-is-lightWhat is light? A guide to waves, particles, colour and more

   www.sciencefocus.com › science › what-is-light

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   A guide to waves, particles, colour and more - BBC Science Focus Magazine.

6. www.britannica.com › Light-as-electromagnetic-radiationLight - Electromagnetic, Wavelength, Spectrum | Britannica

   www.britannica.com › Light-as-electromagnetic-radiation

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   Light - Electromagnetic, Wavelength, Spectrum: In spite of theoretical and experimental advances in the first half of the 19th century that established the wave properties of light, the nature of light was not yet revealed—the identity of the wave oscillations remained a mystery.

7. www.snexplores.org › article › lets-learn-about-lightLet’s learn about light - Science News Explores

   www.snexplores.org › article › lets-learn-about-light

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   Mar 23, 2021 · Light’s more formal name is electromagnetic radiation. This type of energy travels as waves, at a constant speed of 300,000,000 meters (186,000 miles) per second in a vacuum. Light can come in many different forms, all determined by its wavelength. This is the distance between the peak of one wave and the peak of another.

8. phys.libretexts.org › Bookshelves › University_Physics1: The Nature of Light - Physics LibreTexts

   phys.libretexts.org › Bookshelves › University_Physics

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   Feb 20, 2022 · 1: The Nature of Light. Page ID. 4491. OpenStax. In this chapter, we study the basic properties of light. In the next few chapters, we investigate the behavior of light when it interacts with optical devices such as mirrors, lenses, and apertures. 1.1: Prelude to The Nature of Light.