Light

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Light Meaning and Definition in Dictionary

Definitions from Wordnet 2.0


  • any device serving as a source of illumination; "he stopped the car and turned off the lights"
  • a device for lighting or igniting fuel or charges or fires; "do you have a light?"
  • the visual effect of illumination on objects or scenes as created in pictures; "he could paint the lightest light and the darkest dark"
  • brightness and animation of countenance; "he had a sparkle in his eye"
  • the quality of being luminous; emitting or reflecting light; "its luminosity is measured relative to that of our sun"
  • public awareness; "it brought the scandal to light"
  • mental understanding as an enlightening experience; "he finally saw the light"; "can you shed light on this problem?"
  • a particular perspective or aspect of a situation; "although he saw it in a different light, he still did not understand"
  • a visual warning signal; "they saw the light of the beacon"; "there was a light at every corner"
  • an illuminated area; "he stepped into the light"
  • a divine presence believed by Quakers to enlighten and guide the soul
  • a person regarded very fondly; "the light of my life"
  • (physics) electromagnetic radiation that can produce a visual sensation; "the light was filtered through a soft glass window"
  • having abundant light or illumination; "they played as long as it was light"; "as long as the lighting was good"
  • a condition of spiritual awareness; divine illumination; "follow God''s light"
  • make lighter or brighter; "This lamp lightens the room a bit"
  • begin to smoke; "After the meal, some of the diners lit up"
  • get off (a horse)
  • to come to rest, settle; "Misfortune lighted upon him"
  • fall to somebody by assignment or lot; "The task fell to me"; "It fell to me to notify the parents of the victims"
  • cause to start burning; subject to fire or great heat; "Great heat can ignite almost any dry matter"; "Light a cigarette"
  • characterized by or emitting light; "a room that is light when the shutters are open"; "the inside of the house was airy and light"
  • casual and unrestrained in sexual behavior; "her easy virtue"; "he was told to avoid loose (or light) women"; "wanton behavior"
  • (used of color) having a relatively small amount of coloring agent; "light blue"; "light colors such as pastels"; "a light-colored powder"
  • (used of soil) loose and large-grained in consistency; "light sandy soil"
  • (of sleep) easily disturbed; "in a light doze"; "a light sleeper"; "a restless wakeful night"
  • demanding little effort; not burdensome; "light housework"; "light exercise"
  • having relatively few calories; "diet cola"; "light (or lite) beer"; "lite (or light) mayonnaise"; "a low-cal diet"
  • easily assimilated in the alimentary canal; not rich or heavily seasoned; "a light diet"
  • of comparatively little physical weight or density; "a light load"; "magnesium is a light metal--having a specific gravity of 1.74 at 20 degrees C"
  • designed for ease of movement or to carry little weight; "light aircraft"; "a light truck"
  • psychologically light; especially free from sadness or troubles; "a light heart"
  • not great in degree or quantity or number; "a light sentence"; "a light accent"; "casualties were light"; "light snow was falling"; "light misty rain"; "light smoke from the chimney"
  • (physics, chemistry) not having atomic weight greater than average; "light water is ordinary water"
  • of little intensity or power or force; "the light touch of her fingers"; "a light breeze"
  • moving easily and quickly; nimble; "the dancer was light and graceful"; "a lightsome buoyant step"; "walked with a light tripping step"
  • of the military or industry; using (or being) relatively small or light arms or equipment; "light infantry"; "light cavalry"; "light industry"; "light weapons"
  • having a spongy or flaky texture; well-leavened; "light pastries"
  • (of sound or color) free from anything that dulls or dims; "efforts to obtain a clean bass in orchestral recordings"; "clear laughter like a waterfall"; "clear reds and blues"; "a light lilting voice like a silver bell"
  • silly or trivial; "idle pleasure"; "light banter"; "light idle chatter"
  • intended primarily as entertainment; not serious or profound; "light verse"; "a light comedy"
  • having little importance; "losing his job was no light matter"
  • used of vowels or syllables; pronounced with little or no stress; "a syllable that ends in a short vowel is a light syllable"; "a weak stress on the second syllable"
  • less than the correct or legal or full amount often deliberately so; "a light pound"; "a scant cup of sugar"; "regularly gives short weight"
  • very thin and insubstantial; "thin paper"; "flimsy voile"; "light summer dresses"
  • weak and likely to lose consciousness; "suddenly felt faint from the pain"; "was sick and faint from hunger"; "felt light in the head"; "a swooning fit"; "light-headed with wine"; "light-headed from lack of sleep"
  • with few burdens; "experienced travellers travel light"

Definitions from Wiktionary


  • (physics) electromagnetic radiation that can produce a visual sensation; "the light was filtered through a soft glass window" ,
  • any device serving as a source of illumination; "he stopped the car and turned off the lights" ,
  • a particular perspective or aspect of a situation; "although he saw it in a different light, he still did not understand" ,
  • the quality of being luminous; emitting or reflecting light; "its luminosity is measured relative to that of our sun" ,
  • an illuminated area; "he stepped into the light" ,
  • a condition of spiritual awareness; divine illumination; "follow God's light" ,
  • the visual effect of illumination on objects or scenes as created in pictures; "he could paint the lightest light and the darkest dark" ,
  • a person regarded very fondly; "the light of my life" ,
  • mental understanding as an enlightening experience; "he finally saw the light"; "can you shed light on this problem?" , 10. having abundant light or illumination; "they played as long as it was light"; "as long as the lighting was good" , 1
  • public awareness; "it brought the scandal to light" , 1
  • merriment expressed by a brightness or gleam or animation of countenance; "he had a sparkle in his eye"; "there's a perpetual twinkle in his eyes" , 1
  • a divine presence believed by Quakers to enlighten and guide the soul , 1
  • a visual warning signal; "they saw the light of the beacon"; "there was a light at every corner" , 1
  • a device for lighting or igniting fuel or charges or fires; "do you have a light?"

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Light Meaning and Definition in Wikipedia


Light is a type of energy. It is a form of electromagnetic radiation of a wavelength which can be detected by the human eye. Light exists in tiny packets called photons. It shows properties of both waves and particles. The study of light, known as optics, is an important research area in modern physics.

Five main properties of light are intensity, frequency or wavelength, polarization, phase and orbital angular momentum.

In a vacuum (where there is nothing; so, when not slowed down by other particles), light moves at the speed of light; which is 299,792,458 meters, In glass it travels at about two-thirds as fast.

Light moves in a straight line, creating shadows when the path of light is blocked. More solid things will have a darker shadow, things that are more clear have a lighter shadow, and transparent things will have none or very little shadow. Light can pass through transparent things the most easily. Our eyes react to light; when we see something we see the light it reflects, or the light it emits. For example, a lamp gives off light, and everything else in the same room as the lamp reflects its light.


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'Light' example sentence in quotations


* No horse gets anywhere until he is harnessed. No stream or gas drives anything until it is confined. No Niagara is ever turned into light and power until it is tunneled. No life ever grows great until it is focused, dedicated, disciplined. - Harry Emerson Fosdick

* There is a single light of science, and to brighten it anywhere is to brighten it everywhere. - Isaac Asimov

* Nothing travels faster than the speed of light with the possible exception of bad news, which obeys its own special laws. - Douglas Adams


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Light Sample Sentences in News



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