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  1. Dictionary
    fog
    /fɒɡ/

    noun

    • 1. a thick cloud of tiny water droplets suspended in the atmosphere at or near the earth's surface which obscures or restricts visibility (to a greater extent than mist; strictly, reducing visibility to below 1 km): "the collision occurred in thick fog" Similar mistmistinessfogginesshaar
    • 2. a state or cause of perplexity or confusion: "the coffee helped clear the fog in my brain" Similar dazestuportrancehaze

    verb

    • 1. (with reference to a glass surface) cover or become covered with steam: "hot steam drifted about her, fogging up the window" Similar steam upmist overcloud overfilm overOpposite clear
    • 2. bewilder or puzzle: "she stared at him, confusion fogging her brain" Similar muddledazestupefyfuddle

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    More definitions, origin and scrabble points

  2. dictionary.cambridge.org › dictionary › englishFOG | English meaning - Cambridge Dictionary

    FOG definition: 1. a weather condition in which very small drops of water come together to form a thick cloud close…. Learn more.

  3. www.merriam-webster.com › dictionary › fogFog Definition & Meaning - Merriam-Webster

    The meaning of FOG is vapor condensed to fine particles of water suspended in the lower atmosphere that differs from cloud only in being near the ground. How to use fog in a sentence.

  4. dictionary.cambridge.org › us › dictionaryFOG | definition in the Cambridge English Dictionary

    FOG meaning: 1. a weather condition in which very small drops of water come together to form a thick cloud close…. Learn more.

  5. www.britannica.com › science › fogFog | Definition, Formation, Types, & Facts | Britannica

    Jun 13, 2024 · Fog, cloud of small water droplets that is near ground level and sufficiently dense to reduce horizontal visibility to less than 1,000 metres (3,281 feet). The word fog also may refer to clouds of smoke particles, ice particles, or mixtures of these components. Under similar conditions, but with

    • The Editors of Encyclopaedia Britannica

  6. en.wikipedia.org › wiki › FogFog - Wikipedia

    Fog is a visible aerosol consisting of tiny water droplets or ice crystals suspended in the air at or near the Earth 's surface. [1] [2] Fog can be considered a type of low-lying cloud usually resembling stratus, and is heavily influenced by nearby bodies of water, topography, and wind conditions.

  7. www.dictionary.com › browse › fogFOG Definition & Meaning | Dictionary.com

    Fog definition: a cloudlike mass or layer of minute water droplets or ice crystals near the surface of the earth, appreciably reducing visibility.. See examples of FOG used in a sentence.

  8. www.thefreedictionary.com › fogFog - definition of fog by The Free Dictionary

    n. 1. Condensed water vapor in cloudlike masses lying close to the ground and limiting visibility. 2. a. An obscuring haze, as of atmospheric dust or smoke. b. A mist or film clouding a surface, as of a window, lens, or mirror. 3. A cloud of vaporized liquid, especially a chemical spray used in fighting fires. 4. a.