1

light

noun \ ˈlīt \

Definition of light

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 a :daylight
  • was up each morning at the first light
  • —Frank O'Connor
b :dawn
3 :a source of light: such as
a :a celestial body
  • As night fell the lights in the sky multiplied.
b :candle
  • put a light in the window
c :an electric light
4 archaic :sight 4a
5 a :spiritual illumination
  • the light shines in the darkness, and the darkness has not overcome it
  • —John 1:5 (Revised Standard Version)
c :enlightenment
  • reaching out and groping for a pathway to the light
  • —B. N. Cardozo
d :truth
6 a :public knowledge
  • facts brought to light
b :a particular aspect or appearance presented to view
  • saw the matter in a different light
7 :a particular illumination
8 :something that enlightens or informs
  • shed some light on the problem
9 :a medium (such as a window) through which light is admitted
10 lights plural :a set of principles, standards, or opinions
  • worship according to one's lights
  • —Adrienne Koch
11 :a noteworthy person in a particular place or field
  • a literary light among current writers
— see also leading light
12 :a particular expression of the eye
  • listened with a fiery light burning in her eyes
  • —Sherwood Anderson
14 :the representation of light in art
15 :a flame for lighting something (such as a cigarette)
in the light of
1 :from the point of view of
2 or in light of :in view of
  • In light of their findings, new procedures were established.

Examples of light in a Sentence

  1. The landscape was bathed in light.

  2. a photograph taken in low light

  3. the light of the moon

  4. a mixture of light and shadow

  5. The windows let fresh air and light into the room.

  6. The lights suddenly went out.

  7. The lights suddenly came on.

  8. the twinkling lights of the city below

  9. the bright lights of Broadway

  10. The lights are on, so there must be somebody at home.

Origin and Etymology of light

Middle English, from Old English lēoht; akin to Old High German lioht light, Latin luc-, lux light, lucēre to shine, Greek leukos white


2

light

adjective

Definition of light

1 :having light :bright
  • a light airy room
2 a :not dark, intense, or swarthy in color or coloring :pale
b of colors :medium in saturation and high in lightness
  • light blue
3 of coffee :served with extra milk or cream

Origin and Etymology of light

see 1light


3

light

verb

Definition of light

lit play \ˈlit\ or lighted; lighting
intransitive verb
1 :to become light :brighten usually used with up
  • her face lit up
2 :to take fire
3 :to ignite something (such as a cigarette) often used with up
transitive verb
1 :to set fire to
2 a :to conduct with a light :guide
b :illuminate
  • rockets light up the sky
c :animate, brighten
  • a smile lit up her face

Origin and Etymology of light

see 1light


4

light

adjective

Definition of light

1 a :having little weight :not heavy
b :designed to carry a comparatively small load
  • a light truck
c :having relatively little weight in proportion to bulk
  • aluminum is a light metal
d :containing less than the legal, standard, or usual weight
  • a light coin
2 a :of little importance :trivial
b :not abundant
  • light rain
  • a light lunch
3 a :easily disturbed
  • a light sleeper
b :exerting a minimum of force or pressure :gentle
  • a light touch
c :resulting from a very slight pressure :faint
  • light print
4 a :easily endurable
  • a light illness
b :requiring little effort
  • light work
5 :capable of moving swiftly or nimbly
  • light on his feet
6 a :frivolous 1a
  • light conduct
b :lacking in stability :changeable
  • light opinions
c :sexually promiscuous
7 :free from care :cheerful
8 :less powerful but usually more mobile than usual for its kind
  • light cavalry
  • a light cruiser
9 a :made with a lower calorie content or with less of some ingredient (such as salt, fat, or alcohol) than usual
b :having a relatively mild flavor
10 a :easily digested
  • a light soup
b :well leavened
  • a light crust
11 :coarse and sandy or easily pulverized
  • light soil
12 :dizzy, giddy
  • felt light in the head
13 :intended chiefly to entertain
  • light verse
  • light comedy
14 a :carrying little or no cargo
  • the ship returned light
b :producing goods for direct consumption by the consumer
  • light industry
15 :not bearing a stress or accent
  • a light syllable
16 :having a clear soft quality
  • a light voice
17 :being in debt to the pot in a poker game
  • three chips light
18 :short 5d
  • light on experience
19 :casual, occasional
  • a light smoker

lightish

play \ˈlī-tish\ adjective

Origin and Etymology of light

Middle English, from Old English lēoht; akin to Old High German līhti light, Latin levis, Greek elachys small

Synonym Discussion of light

easy, facile, simple, light, effortless, smooth mean not demanding effort or involving difficulty. easy is applicable either to persons or things imposing tasks or to activity required by such tasks.
    • an easy college course
facile often adds to easy the connotation of undue haste or shallowness.
    • facile answers to complex questions
simple stresses ease in understanding or dealing with because complication is absent.
    • a simple problem in arithmetic
light stresses freedom from what is burdensome.
    • a light teaching load
effortless stresses the appearance of ease and usually implies the prior attainment of artistry or expertness.
    • moving with effortless grace
smooth stresses the absence or removal of all difficulties, hardships, or obstacles.
    • a smooth ride

5

light

adverb

Definition of light

1 :lightly
2 :with little baggage
  • travel light

First Known Use of light

before 12th century


6

light

verb

Definition of light

lit play \ˈlit\ or lighted; lighting
intransitive verb
2 :settle, alight
  • a bird lit on the lawn
3 :to fall unexpectedly usually used with on or upon
4 :to arrive by chance :happen usually used with on or upon
  • lit upon a solution
light into
:to attack forcefully
  • I lit into that food until I'd finished off the heel of the loaf
  • —Helen Eustis

Origin and Etymology of light

Middle English, from Old English līhtan; akin to Old English lēoht light in weight


LIGHT Defined for Kids

1

light

noun \ ˈlīt \

Definition of light for Students

1 :the bright form of energy given off by something (as the sun) that makes it possible to see
2 :a source (as a lamp) of light
  • Mr. Cohen flicks the lights off and on …
  • —Paula Danziger, Amber Brown
3 :daylight 1
4 :public knowledge
  • Facts were brought to light during the trial.
5 :understanding that comes from information someone has provided
  • The explanation shed light on the problem.

2

light

adjective

Definition of light for Students

lighter; lightest
1 :having light :bright
  • a light room
2 :not dark or deep in color

3

light

verb

Definition of light for Students

lit \ˈlit\ or lighted; lighting
1 :to make or become bright
2 :to burn or cause to burn
  • light a match
  • light the fire

4

light

adjective

Definition of light for Students

lighter; lightest
1 :having little weight :not heavy
  • a light suitcase
2 :less in amount or force than usual
  • a light breeze
  • a light touch
3 :not hard to bear, do, pay, or digest
  • light punishment
4 :active in motion
  • I felt light on my feet.
5 :free from care :happy
  • a light heart
6 :not dense and thick
  • light clouds
7 :intended mainly to entertain
  • light reading

lightly

adverb

lightness

noun

5

light

adverb

Definition of light for Students

:with little baggage
  • I prefer to travel light.

6

light

verb

Definition of light for Students

lit \ˈlit\ or lighted; lighting
1 :2perch, settle
  • We saw a bird light on a twig.
2 :to come by chance
  • In time I lit on a solution.

Medical Dictionary

1

light

noun \ ˈlīt \

medical Definition of light

1 a :the sensation aroused by stimulation of the visual receptors
b :an electromagnetic radiation in the wavelength range including infrared, visible, ultraviolet, and X-rays and traveling in a vacuum with a speed of about 186,281 miles (300,000 kilometers) per second; specifically :the part of this range that is visible to the human eye
2 :a source of light

2

light

adjective
variants: or lite

medical Definition of light

:made with a lower calorie content or with less of some ingredient (as salt, fat, or alcohol) than usual
  • light salad dressing


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