light
35 synonyms and 30 antonyms for light, grouped by meaning and by how common each one is.
Noun — Brightness that lets people see, from the sun, a lamp, or fire.
Synonyms
Everyday swaps
Common words most readers know — safe in any writing.
Less common
Still standard English, but they carry more weight.
Rare, literary or technical
Precise, but they will stand out — check the sense before using one.
Antonyms
How to use light
The word patterns that sound natural to a native speaker.
Etymology
From Old English lēoht, from a very old root meaning "to shine" shared across most European languages.
Full origin of light →Frequently asked questions
What does “light” mean?
The word “light” means brightness that lets people see, from the sun, a lamp, or fire. In plain terms, brightness that lets you see — or, as an adjective, not heavy, pale, or gentle.
How do you pronounce “light”?
“Light” is pronounced lyt ([ɫɐɪt] in IPA).
How do you use “light” in a sentence?
Here is “light” used in a sentence: “She switched on the light so she could read.”
What is another word for “light”?
Words with a similar meaning to “light” include visible light, luminance, radiation, with milk, with cream and ablaze.
What is the opposite of “light”?
The opposite of “light” — its antonyms — are darkness, T-ray, alpha ray, X-ray and beta ray.
What part of speech is “light”?
Depending on how it is used, “light” can be a noun, a verb and an adjective.
Where does the word “light” come from?
The word “light” comes from Old English. From Old English lēoht, from a very old root meaning "to shine" shared across most European languages.
Is “light” a common word?
“Light” is a very common word in modern English, usually learned at around the A1 level.
What is the difference between light and darkness?
Light is brightness that lets people see, coming from sources like the sun, a lamp, or fire. Darkness is the absence of that light. They are opposites: where light reaches, things become visible; where it is blocked or absent, darkness and shadow remain. One reveals, the other hides.
Where does light come from?
Light comes from sources that give off brightness. The sun is the main natural source, along with fire, lightning, and some living things that glow. Artificial sources include lamps, candles, screens, and torches. We also see objects because they reflect light from these sources into our eyes.
Can light be measured?
Yes. Scientists measure several things about light. Its brightness, or the amount falling on a surface, is measured in units called lux, while the total light a source gives off is measured in lumens. Light's color relates to its wavelength, and its speed is a fixed, well-known constant.
What are the types of light?
Light can be natural, like sunlight, moonlight, and firelight, or artificial, like lamplight and screen light. Scientists also describe light by color and wavelength, from the visible colors of the rainbow to invisible kinds such as ultraviolet and infrared. Visible light is simply the part our eyes can detect.