Word Explorer

Light

/lʌɪt/

Visible electromagnetic radiation. The human eye can typically detect radiation (light) in the wavelength range of about 400 to 750 nanometers. Nearby shorter and longer wavelength ranges, although not visible, are commonly called ultraviolet and infrared light.

Full Dictionary Entry

📖 Definitions of "Light"

noun

1
Visible electromagnetic radiation. The human eye can typically detect radiation (light) in the wavelength range of about 400 to 750 nanometers. Nearby shorter and longer wavelength ranges, although not visible, are commonly called ultraviolet and infrared light.
"As you can see, this spacious dining-room gets a lot of light in the mornings."
2
A source of illumination.
"Put that light out!"
3
Spiritual or mental illumination; enlightenment, useful information.
"Can you throw any light on this problem?"
4
(in the plural) Facts; pieces of information; ideas, concepts.

🔄 Synonyms of "Light"

30 synonyms found via WordNet and Google Books.

Word	Definition
frivolous	Silly, especially at an inappropriate time or in an inappropriate manner; lacking a good reason for being, or for doing what one does; due to or moved by a whim or caprice.
clearverb	Transparent in colour.
brightnoun	Emitting much light; visually dazzling; luminous, lucent, radiant.
livid	(informal) So angry that one turns pale; very angry; furious; liverish.
deficientnoun	Lacking something essential; often construed with in.
shortnoun	Having a small distance from one end or edge to another, either horizontally or vertically.
luminescent	Emitting light by luminescence.
casualnoun	(of behavior, usage, or milieu) Informal; relaxed.
scantverb	Not full, large, or plentiful; scarcely sufficient; scanty; meager.
insignificantnoun	Not significant; not important, inconsequential, or having no noticeable effect.
purenoun	Free of flaws or imperfections; unsullied.
faintverb	(intransitive) To lose consciousness through a lack of oxygen or nutrients to the brain, usually as a result of suddenly reduced blood flow (may be caused by emotional trauma, loss of blood or various medical conditions).
shallowverb	Having little depth; significantly less deep than wide.
fluorescentnoun	Exhibiting or produced by fluorescence.
flimsynoun	Likely to bend or break under pressure; easily damaged; frail, unsubstantial.
easynoun	Requiring little skill or effort.
illuminateverb	(transitive, figurative) To clarify or make something understandable.
incandescentnoun	Emitting light as a result of being heated.
perchnoun	Any of the three species of spiny-finned freshwater fish in the genus Perca.
airynoun	Open to a free current of air; exposed to the air; breezy.
sickverb	(less common in the UK and Ireland) In poor health; ill.
candent	(now rare) Glowing as a result of its high temperature; incandescent, glowing with heat.
fallverb	(heading, intransitive) To be moved downwards.
illuminationnoun	The act of illuminating, or supplying with light; the state of being illuminated.
promiscuous	Having many sexual partners, especially if indiscriminate in choice of sexual partners.

↔️ Antonyms of "Light"

Words with the opposite meaning.

Word	Definition
heavynoun	(of any physical thing) Having great weight.
darknoun	Having an absolute or (more often) relative lack of light.
obliterateverb	(transitive) To destroy (someone or something) completely, leaving no trace; to annihilate, to wipe out.
extinguishverb	(transitive) To stop (fire, etc.) from burning; also, to stop (light, etc.) from shining; to put out, to quench.
darknessnoun	(uncountable) The state of being dark; lack of light; the absolute or comparative absence of light.

💡 Words with a Similar Meaning to "Light"

Found via reverse dictionary — words that share a conceptual meaning.

Word	Definition
visible lightnoun	(physics) The part of the electromagnetic spectrum, between infrared and ultraviolet, that is visible to the human eye.
phosphorescentnoun	A phosphorescent substance.
flyweightnoun	(martial arts) A weight class in many combat sports; e.g. in professional boxing of a maximum of 112 pounds or 50.8 kilograms.
bioluminescent	(biology, biochemistry) Exhibiting bioluminescence.
fluorescentnoun	Exhibiting or produced by fluorescence.
sunlit	Illuminated by sunlight.
light sourcenoun	A source of illumination.
lamplit	Illuminated by a lamp or lamps.
floodlighted	Lit by floodlights; floodlit.
floodlit	Lit by floodlights.
airynoun	Open to a free current of air; exposed to the air; breezy.
luminescent	Emitting light by luminescence.
illuminatedverb	Irradiated by light, lit.
sunstruck	Afflicted with sunstroke.
illuminationnoun	The act of illuminating, or supplying with light; the state of being illuminated.
luminancenoun	The quality of being luminous.
igniternoun	Any device that is used to ignite something, especially a fuel mixture, or a charge of explosive
illuminating	(figuratively) Providing clarification or explanation; educational, revealing.
luminositynoun	(uncountable) the state of being luminous, or a luminous object; brilliance or radiance
whitenoun	Bright and colourless; reflecting equal quantities of all frequencies of visible light.