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  1. LIGHT Definition & Meaning - Merriam-Webster

    The meaning of LIGHT is something that makes vision possible. How to use light in a sentence. Synonym Discussion of Light.

  2. Light | Definition, Properties, Physics, Characteristics, Types ...

    Dec 29, 2025 · Light is electromagnetic radiation that can be detected by the human eye. Electromagnetic radiation occurs over an extremely wide range of wavelengths, from gamma …

  3. Light - Wikipedia

    The main source of natural light on Earth is the Sun. Historically, another important source of light for humans has been fire, from ancient campfires to modern kerosene lamps. With the …

  4. Light - definition of light by The Free Dictionary

    Define light. light synonyms, light pronunciation, light translation, English dictionary definition of light. n. 1. Physics a. Electromagnetic radiation that is visible, perceivable by the normal …

  5. LIGHT | definition in the Cambridge English Dictionary

    LIGHT meaning: 1. the brightness that comes from the sun, fire, etc. and from electrical devices, and that allows…. Learn more.

  6. Light - Learn Physics

    What is Light? Light is a type of energy that enables us to see with our eyes. Light travels from a source, like the sun or a light bulb, to our eyes, and to the surroundings. That is the reason we …

  7. light noun - Definition, pictures, pronunciation and usage notes ...

    Definition of light noun in Oxford Advanced American Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

  8. Light - Simple English Wikipedia, the free encyclopedia

    Light makes up a part of both the electromagnetic spectrum and radiation given by stars, like the sun. The light that comes from the sun reaches the Earth and makes it bright.

  9. The Light Phone

    Light is a radically different technology company. We design beautiful tools that respect and empower our users and our first product is The Light Phone.

  10. LIGHT definition and meaning | Collins English Dictionary

    Light is the brightness that lets you see things. Light comes from sources such as the sun, moon, lamps, and fire. Cracks of light filtered through the shutters. Light and water in embassy …