Definition of Light

1. Noun. (physics) electromagnetic radiation that can produce a visual sensation. "The light was filtered through a soft glass window"

2. Verb. Make lighter or brighter. "This lamp lightens the room a bit"
Exact synonyms: Illume, Illuminate, Illumine, Light Up
Generic synonyms: Lighten, Lighten Up
Specialized synonyms: Floodlight, Spotlight
Derivative terms: Illuminant, Illumination, Illumination

3. Adjective. Of comparatively little physical weight or density. "Magnesium is a light metal--having a specific gravity of 1.74 at 20 degrees C"
Attributes: Weight
Similar to: Lightweight, Airy, Buoyant, Floaty, Lighter-than-air, Low-density
Antonyms: Heavy
Derivative terms: Lightness

4. Adverb. With few burdens. "Experienced travellers travel light"
Exact synonyms: Lightly

5. Noun. Any device serving as a source of illumination. "He stopped the car and turned off the lights"

6. Verb. Begin to smoke. "After the meal, some of the diners lit up"
Exact synonyms: Fire Up, Light Up
Entails: Smoke
Generic synonyms: Ignite

7. Adjective. (used of color) having a relatively small amount of coloring agent. "A light-colored powder"
Exact synonyms: Light-colored
Attributes: Value
Also: White
Similar to: Pale, Palish, Pastel, Powdery
Antonyms: Dark
Derivative terms: Lightness

8. Noun. A particular perspective or aspect of a situation. "Although he saw it in a different light, he still did not understand"
Generic synonyms: Perspective, Position, View

9. Verb. To come to rest, settle. "Misfortune lighted upon him"
Exact synonyms: Alight, Perch
Generic synonyms: Land, Set Down

10. Adjective. Of the military or industry; using (or being) relatively small or light arms or equipment. "Light weapons"
Similar to: Light-armed, Lightly-armed
Antonyms: Heavy

11. Noun. The quality of being luminous; emitting or reflecting light. "Its luminosity is measured relative to that of our sun"
Exact synonyms: Brightness, Brightness Level, Luminance, Luminosity, Luminousness
Generic synonyms: Physical Property
Specialized synonyms: Illuminance, Illumination, Incandescence, Glow, Luminescence
Attributes: Bright, Dull
Derivative terms: Bright, Bright, Bright, Luminous, Bright

12. Verb. Cause to start burning; subject to fire or great heat. "Light a cigarette"
Exact synonyms: Ignite
Causes: Burn, Combust
Specialized synonyms: Fire Up, Light Up, Reignite, Conflagrate, Enkindle, Inflame, Kindle, Light Up, Flare Up
Generic synonyms: Burn, Combust
Antonyms: Extinguish
Derivative terms: Ignitable, Igniter, Igniter, Ignitible, Ignition, Ignition, Ignitor, Ignitor, Lighter, Lighter

13. Adjective. Not great in degree or quantity or number. "Light smoke from the chimney"
Antonyms: Heavy

14. Noun. An illuminated area. "He stepped into the light"
Generic synonyms: Scene

15. Verb. Fall to somebody by assignment or lot. "It fell to me to notify the parents of the victims"
Exact synonyms: Fall
Generic synonyms: Devolve, Fall, Pass, Return
Related verbs: Accrue, Fall, Fall

16. Adjective. Psychologically light; especially free from sadness or troubles. "A light heart"
Similar to: Casual, Fooling
Antonyms: Heavy
Derivative terms: Lightness

17. Noun. A condition of spiritual awareness; divine illumination. "Follow God's light"
Exact synonyms: Illumination
Generic synonyms: Condition, Status

18. Verb. Alight from (a horse).
Exact synonyms: Dismount, Get Down, Get Off, Unhorse
Category relationships: Horseback Riding, Riding
Generic synonyms: Come Down, Descend, Fall, Go Down
Derivative terms: Dismount

19. Adjective. Characterized by or emitting light. "The inside of the house was airy and light"

20. Noun. The visual effect of illumination on objects or scenes as created in pictures. "He could paint the lightest light and the darkest dark"
Exact synonyms: Lightness
Generic synonyms: Visual Property
Specialized synonyms: Aura, Aureole, Gloriole, Glory, Halo, Nimbus, Sunniness, Highlight, Highlighting, Brightness
Attributes: Dark

21. Adjective. (used of vowels or syllables) pronounced with little or no stress. "A weak stress on the second syllable"
Exact synonyms: Unaccented, Weak
Similar to: Unstressed

22. Noun. A person regarded very fondly. "The light of my life"
Generic synonyms: Friend

23. Adjective. Easily assimilated in the alimentary canal; not rich or heavily seasoned. "A light diet"
Similar to: Digestible

24. Noun. Having abundant light or illumination. "As long as the lighting was good"
Exact synonyms: Lighting
Generic synonyms: Illumination
Antonyms: Dark

25. Adjective. (used of soil) loose and large-grained in consistency. "Light soil"
Similar to: Loose
Derivative terms: Lightness

26. Noun. Mental understanding as an enlightening experience. "Can you shed light on this problem?"
Generic synonyms: Brainstorm, Brainwave, Insight

27. Adjective. (of sound or color) free from anything that dulls or dims. "A light lilting voice like a silver bell"
Exact synonyms: Clean, Clear, Unclouded
Similar to: Pure
Derivative terms: Clarity, Clearness, Uncloudedness

28. Noun. Merriment expressed by a brightness or gleam or animation of countenance. "There's a perpetual twinkle in his eyes"
Exact synonyms: Spark, Sparkle, Twinkle
Generic synonyms: Verve, Vitality, Aspect, Expression, Face, Facial Expression, Look
Derivative terms: Sparkle, Sparkly, Twinkly

29. Adjective. Moving easily and quickly; nimble. "Walked with a light tripping step"
Exact synonyms: Lightsome, Tripping
Similar to: Light-footed
Derivative terms: Lightness, Lightsomeness

30. Noun. Public awareness. "It brought the scandal to light"

31. Adjective. Demanding little effort; not burdensome. "Light exercise"
Similar to: Undemanding

32. Noun. A divine presence believed by Quakers to enlighten and guide the soul.

33. Adjective. Of little intensity or power or force. "A light breeze"
Similar to: Easy, Gentle, Soft
Antonyms: Heavy

34. Noun. A visual warning signal. "There was a light at every corner"
Generic synonyms: Visual Signal
Specialized synonyms: Stoplight, Traffic Light, Traffic Signal

35. Adjective. (physics, chemistry) not having atomic weight greater than average. "Light water is ordinary water"
Category relationships: Chemical Science, Chemistry
Antonyms: Heavy

36. Noun. A device for lighting or igniting fuel or charges or fires. "Do you have a light?"
Exact synonyms: Igniter, Ignitor, Lighter
Specialized synonyms: Cigar Lighter, Cigarette Lighter, Pocket Lighter, Fuse, Fusee, Fuze, Fuzee, Primer, Priming, Friction Match, Lucifer, Match, Match
Generic synonyms: Device
Derivative terms: Ignite, Ignite

37. Adjective. Weak and likely to lose consciousness. "Light-headed from lack of sleep"
Exact synonyms: Faint, Light-headed, Lightheaded, Swooning
Similar to: Ill, Sick
Derivative terms: Faint, Faintness, Lightheadedness

38. Adjective. Very thin and insubstantial. "Light summer dresses"
Similar to: Thin
Derivative terms: Lightness

39. Adjective. Marked by temperance in indulgence. "Ate a light supper"
Exact synonyms: Abstemious
Similar to: Temperate
Derivative terms: Abstemiousness

40. Adjective. Less than the correct or legal or full amount often deliberately so. "Regularly gives short weight"
Exact synonyms: Scant, Short
Similar to: Deficient, Insufficient
Derivative terms: Scantness

41. Adjective. Having little importance. "Losing his job was no light matter"

42. Adjective. Intended primarily as entertainment; not serious or profound. "A light comedy"
Similar to: Frivolous
Derivative terms: Lightness

43. Adjective. Silly or trivial. "Light idle chatter"
Exact synonyms: Idle
Similar to: Frivolous
Derivative terms: Lightness

44. Adjective. Designed for ease of movement or to carry little weight. "A light truck"
Similar to: Light-duty

45. Adjective. Having relatively few calories. "A low-cal diet"
Exact synonyms: Calorie-free, Lite, Low-cal
Similar to: Fat-free, Fatless, Nonfat

46. Adjective. (of sleep) easily disturbed. "A restless wakeful night"
Exact synonyms: Wakeful
Similar to: Shallow
Derivative terms: Wakefulness

47. Adjective. Casual and unrestrained in sexual behavior. "Wanton behavior"

Definition of Light

1. n. That agent, force, or action in nature by the operation of which upon the organs of sight, objects are rendered visible or luminous.

2. a. Having light; not dark or obscure; bright; clear; as, the apartment is light.

3. v. t. To set fire to; to cause to burn; to set burning; to ignite; to kindle; as, to light a candle or lamp; to light the gas; -- sometimes with up.

4. v. i. To become ignited; to take fire; as, the match will not light.

5. a. Having little, or comparatively little, weight; not tending to the center of gravity with force; not heavy.

6. adv. Lightly; cheaply.

7. v. t. To lighten; to ease of a burden; to take off.

8. v. i. To dismount; to descend, as from a horse or carriage; to alight; -- with from, off, on, upon, at, in.

Definition of Light

1. Verb. (transitive) To start (a fire). ¹

2. Verb. (transitive) To set fire to. ¹

3. Verb. (transitive) To illuminate. ¹

4. Noun. The natural medium emanating from the sun and other very hot sources (now recognised as electromagnetic radiation with a wavelength of 400-750 nm), within which vision is possible. ¹

5. Noun. A source of illumination. ¹

6. Noun. Spiritual or mental illumination; enlightenment, useful information. ¹

7. Noun. (context: in the plural now rare) Facts. pieces of information; ideas, concepts. ¹

8. Noun. A notable person within a specific field or discipline. ¹

9. Noun. A point of view, or aspect from which a concept, person or thing is regarded. ¹

10. Noun. A flame or something used to create fire. ¹

11. Noun. A window, or space for a window in architecture ¹

12. Noun. The series of squares reserved for the answer to a crossword clue ¹

13. Noun. (informal) A cross-light in a double acrostic or triple acrostic. ¹

14. Adjective. having light ¹

15. Adjective. pale in colour ¹

16. Adjective. (context: of coffee) served with extra milk or cream ¹

17. Adjective. Of low weight; not heavy. ¹

18. Adjective. Lightly-built; designed for speed or small loads. ¹

19. Adjective. Gentle; having little force or momentum. ¹

20. Adjective. Low in fat, calories, alcohol, salt, etc. ¹

21. Adjective. Unimportant, trivial, having little value or significance. ¹

22. Adjective. (rail transport of a locomotive usually with "run") travelling with no carriages, wagons attached ¹

23. Adjective. (obsolete) Unchaste, wanton. ¹

24. Adverb. Carrying little. ¹

25. Noun. (curling) A stone that is not thrown hard enough. ¹

26. Verb. (nautical) To unload a ship, or to jettison material to make it lighter ¹

27. Verb. To find by chance. ¹

28. Verb. (archaic) To alight. ¹

¹ Source:

Definition of Light

1. having little weight [adj LIGHTER, LIGHTEST] / to illuminate [v LIGHTED or LIT, LIGHTING, LIGHTS] - See also: illuminate

Medical Definition of Light

1. Light is radiant energy of such wavelength that, falling on the retina, it stimulates the rods and cones of the eye and produces the sensation of vision. The foregoing is a physiological (subjective) definition which tells what light does, under certain conditions, rather than what it is. According to the (objective) Maxwell theory, all radiant energy is electromagnetic in character, the generation of the radiation depending upon the portion of the spectrum under consideration. For that part of the spectrum lying within the visual range, approximately 400 to 700 nanometres (nm) the release of light energy from externally stimulated sources may be thought of as due to atomic or molecular vibration or to the passing of electrons from high to lower energy levels accompanied by the spasmodic release of energy as the electronic orbits decrease in diameter. See: quantum theory. (05 Aug 1998)

Lexicographical Neighbors of Light

light (current term)
light-activated resin
light-adapted eye
light-cured resin
light-duty vehicle
light-emitting diode
light-emitting diodes

Literary usage of Light

Below you will find example usage of this term as found in modern and/or classical literature:

1. Physical Optics by Robert Williams Wood (1914)
"The foundations of our present knowledge respecting the nature of light were ... In Sir Isaac Newton effected the prismatic decomposition of white light ..."

2. The Return of the Native by Thomas Hardy (1917)
"CHAPTER I "WHEREFORE IS light GIVEN TO HIM THAT IS IN MISERY" One evening, about three weeks after the funeral of Mrs. Yeobright, when the silver face of ..."

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