Learn how to say Light correctly with EmmaSaying's "how do you pronounce" free tutorials. Definition of light (oxford dictionary): noun 1 [mass noun] the natural agent that stimulates sight and makes things visible: the light of the sun [in singular]: the lamps in the street shed a faint light into the room [count noun] a source of illumination, especially an electric lamp: a light came on in his room (lights) decorative illuminations: Christmas lights [count noun] (usually lights) a traffic light: turn right at the lights the amount or quality of light in a place: the plant requires good light [count noun]: in some lights she could look beautiful Law the light falling on the windows of a house. See ancient lights. Visible light is electromagnetic radiation whose wavelength falls within the range to which the human retina responds, i.e. between about 390 nm (violet light) and 740 nm (red). White light consists of a roughly equal mixture of all visible wavelengths, which can be separated to yield the colours of the spectrum, as was first demonstrated conclusively by Newton. In the 20th century it became apparent that light consists of energy quanta called photons which behave partly like waves and partly like particles. The velocity of light in a vacuum is 299,792 km per second 2 [in singular] an expression in someone's eyes indicating a particular emotion or mood: a shrewd light entered his eyes (lights) a person's opinions, standards, and abilities: leaving the police to do the job according to their lights 3 [mass noun] understanding of a problem or mystery; enlightenment: she saw light dawn on the woman's face spiritual illumination by divine truth. 4an area of something that is brighter or paler than its surroundings: sunshine will brighten the natural lights in your hair 5a device used to produce a flame or spark: he asked me for a light 6a window or opening to let light in: the bedroom has a wide bay with leaded lights a perpendicular division of a mullioned window. a pane of glass forming the roof or side of a greenhouse or the top of a cold frame. 7a person eminent in a particular sphere of activity: such lights of Liberalism as the historian Goldwin Smith 8British (in a crossword puzzle) a blank space to be filled by a letter. verb (past lit /lɪt/; past participle lit or lighted) [with object] 1provide with light or lighting; illuminate: the room was lit by a number of small lamps lightning suddenly lit up the house switch on (an electric light): only one of the table lamps was lit [with object and adverbial] provide a light for (someone) so that they can see where they are going: I'll light you down to the gate [no object] (light up) become illuminated: the sign to fasten seat belts lit up 2make (something) start burning; ignite: Alan gathered sticks and lit a fire (as adjective lighted or lit) a lit cigarette [no object] begin to burn; be ignited: the gas wouldn't light properly (light something up) ignite a cigarette, cigar, or pipe and begin to smoke it: she lit up a cigarette and puffed on it serenely [no object]: workers who light up in prohibited areas face dismissal adjective 1having a considerable or sufficient amount of natural light; not dark: the bedrooms are light and airy 2(of a colour) pale: her eyes were light blue Derivatives lightish adjective lightless adjective lightness noun Origin: Old English lēoht, 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' http://www.emmasaying.com/ Take a look at my comparison tutorials here : https://www.youtube.com/user/EmmaSaying/videos?view=1 Subscribe to my channel here : https://www.youtube.com/user/EmmaSaying

• published: 20 Aug 2013
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