light up

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light 1

1. Physics
a. Electromagnetic radiation that is visible, perceivable by the normal human eye as colors between red and violet, having frequencies between 400 terahertz and 790 terahertz and wavelengths between 750 nanometers and 380 nanometers. Also called visible light.
b. Electromagnetic radiation of any frequency or wavelength.
2. The sensation of perceiving light; brightness: a sudden light that made me blink.
a. A source of light, especially a lamp, a lantern, or an electric lighting fixture: Turn out the lights when you leave.
b. The illumination derived from a source of light: by the light of the moon.
c. The particular quantity or quality of such illumination: moved the lamp closer to get better light.
d. The pathway or route of such illumination to a person: You're standing in his light.
a. A source of fire, such as a match or cigarette lighter.
b. A mechanical device that uses illumination as a signal or warning, especially a beacon or traffic signal.
a. Daylight.
b. Dawn; daybreak.
6. Something, such as a window, that admits illumination.
7. Architecture One of two or more openings in a window divided by a mullion or mullions.
8. Something that provides information or clarification: research that produced little new light on the question.
a. A state of awareness or understanding, especially as derived from a particular source: in the light of experience.
b. Public attention; general knowledge: brought the scandal to light.
c. Spiritual awareness; illumination.
10. A way of looking at or considering a matter; an aspect: saw the situation in a different light.
11. Archaic Eyesight.
12. lights One's individual opinions, choices, or standards: acted according to their own lights.
13. A person who inspires or is adored by another: My daughter is the light of my life.
14. A prominent or distinguished person; a luminary: one of the leading lights of the theater.
15. An expression of the eyes: a strange light in her eyes.
16. lights Pieces of laundry that are not dark in color.
17. Light In Quaker doctrine, the guiding spirit or divine presence in each person.
v. light·ed or lit (lĭt), light·ing, lights
1. To set on fire; ignite or kindle: lit the kindling.
2. To cause to give out light; make luminous: lit a lamp.
3. To provide, cover, or fill with light; illuminate: fireworks lighting the sky.
4. To signal, direct, or guide with light: "You'd ... set the lamp in the dormer window to light him home through the storm" (Edith Nesbit).
5. To enliven or animate: A smile lit her face.
1. To start to burn; be ignited or kindled: Green wood does not light easily.
2. To emit light; be lighted: Wait until the indicator lights up.
adj. light·er, light·est
a. Having a greater rather than lesser degree of lightness.
b. Of or being an additive primary color.
2. Characterized by or filled with light; bright: a room that is light when the shutters are open.
3. Not dark in color; fair: light hair and skin.
4. Served with milk or cream. Used of coffee.
Phrasal Verb:
light up
1. To become or cause to become animated or cheerful.
2. To start smoking a cigarette, cigar, or pipe.
cast/shed/throw light on
To provide information about or clarify (something).
in (the) light of
In consideration of; in relationship to.
light a fire under
To urge or move to action.
light at the end of the tunnel
The prospect of success, relief, or escape after strenuous effort.

[Middle English, from Old English lēoht, līht; see leuk- in Indo-European roots.]
Usage Note: Lighted and lit are equally acceptable as past tense and past participle of light. Both forms are also well established as adjectives: a lighted (or lit) candle.

light 2

adj. light·er, light·est
a. Of relatively little weight; not heavy: a light load.
b. Of relatively little weight for its size or bulk: Balsa is a light wood.
c. Of less than the correct, standard, or legal weight: a light pound.
a. Designed for ease and quickness of movement; having a structure that is slim and has little weight for its type or class: light aircraft.
b. Designed to carry relatively little weight: light trucks.
c. Carrying little equipment or armament: light cavalry.
d. Requiring relatively little equipment and using relatively simple processes to produce consumer goods: light industry.
3. Exerting little force or impact; gentle: a light pat.
4. Indistinct; faint: light print that I could barely make out.
a. Low in quantity or intensity: light traffic; light snow.
b. Consuming or using relatively moderate amounts; abstemious: a light eater; a light smoker.
c. Not harsh or severe: gave the offender a light sentence.
6. Moving easily and quickly; nimble: You're very light on your feet.
a. Easy to perform or accomplish; requiring little effort: light chores.
b. Easy to bear or endure: a light tax.
a. Having little importance; insignificant: light conversation.
b. Intended primarily as entertainment and lacking serious or weighty content: a light comedy.
c. Not solemn or serious: spoke in a light manner of the situation.
d. Free from worries or troubles; blithe: a light heart.
9. Mildly dizzy or faint: felt light in the head.
10. Easily awakened or disturbed: a light sleeper.
a. Easily digested: a light supper.
b. Containing a relatively small amount of a potentially harmful ingredient, such as alcohol, fat, or sodium: light beer; light mayonnaise.
a. Having a spongy or flaky texture; well-leavened: light pastries.
b. Having a loose, porous consistency: light soil.
13. Linguistics
a. Of, relating to, or being a syllable ending in a short vowel or a short vowel plus a consonant.
b. Of, relating to, or being a vowel or syllable pronounced with little or no stress.
adv. lighter, lightest
1. In a light manner; lightly.
2. With little weight and few burdens: traveling light.
intr.v. light·ed or lit (lĭt), light·ing, lights
1. To get down, as from a vehicle or horse; dismount.
2. To descend to the ground after flight; land.
3. To come upon one unexpectedly: Misfortune lighted upon him.
4. To come upon by chance or accident. Used with on or upon: lit on the perfect solution to the problem.
Phrasal Verbs:
light into Informal
To attack verbally or physically; assail.
light out Informal
To leave hastily; run off.
go light on
1. To use, acquire, or consume in small or moderate amounts: go light on the garlic.
2. To treat leniently.

[Middle English, from Old English lēoht, līht; see legwh- in Indo-European roots.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

light up

vb (adverb)
1. to light a cigarette, pipe, etc
2. to illuminate or cause to illuminate
3. to make or become cheerful or animated
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ThesaurusAntonymsRelated WordsSynonymsLegend:
Verb1.light up - start to burn with a bright flame; "The coal in the BBQ grill finally lit up"
catch fire, take fire, ignite, combust, conflagrate, erupt - start to burn or burst into flames; "Marsh gases ignited suddenly"; "The oily rags combusted spontaneously"
2.light up - make lighter or brighter; "This lamp lightens the room a bit"
lighten up, lighten - become lighter; "The room lightened up"
floodlight - illuminate with floodlights
spotlight - illuminate with a spotlight, as in the theater
3.light up - become clear; "The sky cleared after the storm"
4.light up - ignite; "The sky lit up quickly above the raging volcano"
ignite, light - cause to start burning; subject to fire or great heat; "Great heat can ignite almost any dry matter"; "Light a cigarette"
5.light up - begin to smoke; "After the meal, some of the diners lit up"
ignite, light - cause to start burning; subject to fire or great heat; "Great heat can ignite almost any dry matter"; "Light a cigarette"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
يَبدأ بالإضاءَهيُشْرِقيُضيء
komme til livlyse opoplysetænde
kvikna, ljóma uppljóma, geislalÿsa upp
osvetliťrozjasniťrozsvietiť sa
aydınlanmakaydınlatmakparla makyanmak

w>light up

(= be lit)aufleuchten; the shop signs light up after darkdie Leuchtreklamen werden nach Einbruch der Dunkelheit eingeschaltet; the room suddenly lit upplötzlich ging das Licht im Zimmer an
(face)sich erhellen; (eyes)aufleuchten; his face lit up with joysein Gesicht strahlte vor Freude
(= start to smoke) the men took out their pipes and lit updie Männer holten ihre Pfeifen hervor und zündeten sie an
vt sep
(= illuminate)beleuchten; lightsanmachen; a smile lit up his faceein Lächeln erhellte sein Gesicht; Piccadilly Circus was all lit upder Piccadilly Circus war hell erleuchtet; flames lit up the night skyFlammen erleuchteten den Nachthimmel
cigarette etcanzünden
(fig inf) to be lit upangesäuselt sein (inf)
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007


(lait) noun
1. the brightness given by the sun, a flame, lamps etc that makes things able to be seen. It was nearly dawn and the light was getting stronger; Sunlight streamed into the room.
2. something which gives light (eg a lamp). Suddenly all the lights went out.
3. something which can be used to set fire to something else; a flame. Have you got a light for my cigarette?
4. a way of viewing or regarding. He regarded her action in a favourable light.
1. having light; not dark. The studio was a large, light room.
2. (of a colour) pale; closer to white than black. light green.
verbpast tense, past participle lit (lit) , ˈlighted
1. to give light to. The room was lit only by candles.
2. to (make something) catch fire. She lit the gas; I think this match is damp, because it won't light.
ˈlightness noun
ˈlighten verb
to make or become brighter. The white ceiling lightened the room; The sky was lightening.
ˈlighter noun
something used for lighting (a cigarette etc).
ˈlighting noun
a means of providing light. The lighting was so bad in the restaurant that we could hardly see.
lighthouse noun
a building built on rocks, coastline etc with a (flashing) light to guide or warn ships.
ˈlight-year noun
the distance light travels in a year (nearly 9.5 million million kilometres).
bring to light
to reveal or cause to be noticed. The scandal was brought to light by the investigations of a journalist.
come to light
to be revealed or discovered. The manuscript came to light in a box of books at an auction.
in the light of
taking into consideration (eg new information). The theory has been abandoned in the light of more recent discoveries.
light up
1. to begin to give out light. Evening came and the streetlights lit up.
2. to make, be or become full of light. The powerful searchlight lit up the building; She watched the house light up as everyone awoke.
3. to make or become happy. Her face lit up when she saw him; A sudden smile lit up her face.
see the light
1. to be born, discovered, produced etc. After many problems his invention finally saw the light (of day).
2. to be converted to someone else's point of view etc.
set light to
to cause to begin burning. He set light to the pile of rubbish in his garden.
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.
References in periodicals archive ?
She could only easily find small, star-shaped stickers that light up in the dark.
The plan will involve the installation of lights along external roads, which will light up if the motorist is approaching a traffic accident.