Main definitions of fog in English

: fog1fog2

fog1

noun

  • 1[mass noun] 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’
    • ‘Examples from the meteorological domain include fog, mist, frost, drizzle, and rain.’
    • ‘Clouds and fog can bring visibility down to zero.’
    • ‘Weather conditions at the time were described as desperate with thick fog, rain, and drizzle.’
    • ‘Wind can cause an air force to be grounded, as can mist, fog and stormy weather.’
    • ‘However, on the Sunday there was thick fog and some mist for most the afternoon.’
    • ‘He couldn't see a thing, as the moon hid behind the clouds and thick fog.’
    • ‘A motorist had to be cut free from her car after it and an estate towing a caravan crashed in thick fog on the A19 near York.’
    • ‘Beyond that, he could make out buildings of some sort, but mostly everything was obscured by thick fog rolling through.’
    • ‘Your Jeep fog lights can help you cut through thick fog or rain with ease and without temporarily blinding your eyes.’
    • ‘Later, Ridgway found himself being driven through thick fog and rain along a congested road during the Battle of the Bulge.’
    • ‘In the closing stages the game almost descended into farce as a thick freezing fog had enveloped the pitch reducing visibility drastically.’
    • ‘Thick fog had reduced visibility, causing the Glanmire to plough into Black Carr Rock.’
    • ‘Police said it was raining at the time of the crash and that low cloud and dense fog reduced visibility.’
    • ‘Rain, heavy cloud cover and thick fog in the area had prompted Albania's prime minister, Fatos Nano, to cancel his own flight to the conference.’
    • ‘Their fine foliage can intercept tiny water droplets and fog as it blows over the plateau.’
    • ‘Friday morning, the mist and fog was thick enough that I could barely see the mug on the Maxwell House plant.’
    • ‘Boats, and even ships, can be difficult to see when visibility is reduced by mist, fog, rain or darkness.’
    • ‘Thick fog clouded the streets, making it difficult for Cay to see more than a distance of about ten feet of the street in front of him.’
    • ‘Dennis looked away out over the water at the thick fog.’
    • ‘Storm clouds, rain, fog, mist, and snow often dramatize the settings and heighten the fantasy of such regal scenes.’
    mist, mistiness, fogginess, haar, smog, murk, murkiness, haze, haziness, gloom, gloominess
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    1. 1.1[in singular]An opaque mass of particles in the air.
      ‘a whirling fog of dust’
      • ‘Soon, up the street, I saw the swirling masses, vaguely in the fog of the gasses.’
      • ‘When the ammonia fog cleared, they found meth, guns, stolen property, and a huge cache of pseudoephedrine pills.’
      • ‘When the black fog finally cleared up, the four adventurers finally got a chance to see just who this terrifying Dr. Dread was.’
      • ‘And there is often a fog of fag smoke drifting through Lancaster's state-of-the-art bus station.’
      • ‘In the auditorium eons of dust collected in the pale green stage curtain, sending up a billowing fog of allergens each time the folds were drawn or opened.’
      • ‘The cloud clearly isn't steam in the strict sense, nor vapour (these are both invisible) but a fog of small ice crystals.’
      • ‘But the wider financial district was forced into a hasty evacuation last Tuesday in a terrifying fog of dust and smoke.’
      • ‘A billowing fog of chill air poured out of the door and swirled around Cane's arms and legs as he heedlessly strode forward.’
      • ‘They disappeared into an enormous fog of smoke and dust.’
    2. 1.2Photography
      Cloudiness which obscures the image on a developed negative or print.
      • ‘Dichroic fog may result from extended development of high speed films.’
      • ‘Although it is possible to print through the fog, graininess is increased by developer induced base fog.’
      • ‘Restrainers both slow the rate of development and prevent unwanted fog.’
      • ‘Stieglitz began to talk of banishing the painterly poetic fog from photography.’
      • ‘The image is fairly decent, the full screen transfer suffering from a little-too-soon cosmetic soft focus and fog.’
  • 2[in singular] A state or cause of perplexity or confusion.

    ‘the coffee helped clear the fog in my brain’
    • ‘Thoughts of deprecation ran rapid, like beasts, through the fog of her mind.’
    • ‘Ford shook his head suddenly, as if clearing a drunken fog from his mind.’
    • ‘Jim moved out of sight and Blair forced his eyes open wide, trying to take deeper breaths to clear the fog.’
    • ‘I asked, confused, shaking my head to try to clear the fog that was setting in on my brain.’
    • ‘Victor sat down, shaking his head in an attempt to clear the fog overwhelming his brain.’
    • ‘With the sound of that voice the fog in my head cleared instantly.’
    • ‘Peter heard Marc's words through the fog in his brain but the substance of it was clear enough.’
    • ‘I thought that would have carried on when I stopped using the drugs but the fog clears and your thinking comes back.’
    • ‘Clearing the fog from his mind, the general rolled to his feet and slipped on some loose rocks, falling back and down the rocky slope.’
    • ‘She grabbed at his hand to push away from her as she tried to clear the hazy fog from her mind.’
    • ‘What little of it that can get in through my malfunctioning airways brings a fog to my brain.’
    • ‘Letting out a sigh, Cheryl climbed out of her bed and tried to clear the fog out of her brain.’
    • ‘Simultaneously, the breakfast coffee kicked in and the fog cleared from my head.’
    • ‘Rerina answered, shaking her head to clear the fog in it, but it only made his access to her neck better.’
    • ‘The fog cleared and I learned a lot about why I was the way I was.’
    • ‘Suddenly the fog cleared from his brain and he heard what the voice was saying.’
    • ‘He sighed, leaning back into the chair and raising his hands to his eyes, as if trying to clear the fog from his brain.’
    • ‘Scott shook his head, attempting to clear the fog in his mind left over from his semi-consciousness.’
    • ‘Enlil heaved a huge sigh and sat down in his favourite chair and tried to clear the fog from his mind.’
    • ‘It charges you, it puts a dance in your step, it clears the fog from your senses and plugs you in to a glowing, blaring night that can be yours again.’
    daze, stupor, trance, haze, muddle
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verb

[WITH OBJECT]
  • 1(with reference to a glass surface) cover or become covered with steam.

    [with object] ‘hot steam drifted about her, fogging up the window’
    [no object] ‘the windscreen was starting to fog up’
    • ‘She stood so long by the window that her breath fogged up the glass, and she had to wipe it away with her black glove.’
    • ‘The steam from the hot drink started to fog up his glasses.’
    • ‘Steam rose around the room, fogging up the mirror.’
    • ‘The steaming hot water of the bath had naturally fogged up the glass so with one swoop of her bony hand she wiped a streak clear.’
    • ‘I knew he didn't mind, this way him and Porsha would be able to fog up the windows without having to worry about me being there.’
    • ‘The shower was long and pleasant, steam fogging up the mirror above the sink.’
    • ‘In a flash, Bryn's snout was inches from Zion's nose; his hot, steamy breath fogging up the glasses perched there.’
    • ‘Should Miller's ratings slip, we'll see just what he's willing to do to keep the mouth-breathers fogging their screens.’
    • ‘Solastian was half-asleep now and leaning against the door window, eyes half-closed and unfocused and breath fogging up the glass.’
    • ‘Her breath was fogging up the faceplate of the environmental suit she was wearing.’
    • ‘Unfortunately, her breath fogged up the glass in seconds so she couldn't see much of anything.’
    • ‘If you look closely, and try not to fog up the mirror with your feverish breath, you can see a number of tiny fluid-filled blisters.’
    • ‘Without thinking, she blew a puff of air at the unruly hair, which just fogged up her glasses and put small droplets of spit on the lenses.’
    • ‘Mario looked through the windows of the store in front of him, his breath fogging up the glass as he breathed hard.’
    • ‘It's a way to let off steam, and Eddie's got so much steam that it's fogging the windows.’
    • ‘Tyger's face is very close to the man, fogging up his protective visor.’
    • ‘The bath was already hot, and it was fogging up the windows.’
    • ‘The steam of the shower fogged up the small window slightly above the shower.’
    • ‘Fayd watched through the small window on the pod, his breath fogging up the thick glass.’
    • ‘After feeling weirded out for a few minutes, she noticed the steam fogging up the mirror.’
    steam up, mist over, cloud over, film over, become misty, become blurred, become covered in condensation
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    1. 1.1Photography
      Make (a film, negative, or print) obscure or cloudy.
      • ‘First, the black - and-white latent image is developed and then the rest of the unexposed material is chemically fogged.’
      • ‘When the buildup is sufficient, a spark may flash inside your camera, fogging the film.’
      • ‘I have not noticed any fogging problems after a couple thousand 4x5 and 8x10 negatives.’
      • ‘The process involves fogging the affected materials with special chemicals.’
      • ‘This will eliminate reflections from the backing material that can fog the film.’
  • 2Bewilder or puzzle.

    ‘she stared at him, confusion fogging her brain’
    • ‘Confusion was fogging my brain up to the point that I couldn't think, I could only feel.’
    • ‘He tried to ignore them, but found it extremely difficult when pain filled his thought process, fogging his brain.’
    • ‘I go all misty eyed when I read hard scientific stuff… my brain fogs over, so to hear that you also find his work interesting is heartening.’
    • ‘Drake took a long moment to gather his scattered wits, his mind clearly fogged by the pain and discomfort.’
    • ‘Confusion and uncertainty fogged Drillian's brain as he shifted uncomfortably, unsure of what to do.’
    • ‘I asked, trying to keep my voice calm, even though panic was fogging my brain.’
    • ‘The biggest puffer in this Parliament has started to talk about how great the sense of having one's brain fogged up is for one.’
    • ‘My brain was so fogged, my memory so poor and my concentration so fleeting that it would take me the entire morning to eke out a paragraph.’
    • ‘I get so far into the text and then my brain fogs over.’
    • ‘Without another thought to fog her mindset Kyle turned left and fled carrying the guilt of leaving Francis alone with them.’
    • ‘Jake's brain was fogged, but he knew well enough that he had been thrown onto his back and the women of his dreams was pinning him down.’
    • ‘This was a mild insult between Guardians, to imply that one's brain has been fogged.’
    • ‘She groaned and stood up, staggering a bit as sleep continued to fog her brain.’
    • ‘I sat up and buried my face in my hands, confusion fogging my mind.’
    muddle, daze, stupefy, fuddle, befuddle, bewilder, confuse, perplex, baffle, obscure
    View synonyms
    1. 2.1Make (an idea or situation) difficult to understand.
      ‘the government has been fogging the issue’
      • ‘Forget the figures for a moment, though: they fog the emotional experience that defines a legend.’
      • ‘But Reagan never let his crystalline beliefs be fogged by reality, including the reality of his own behavior.’
  • 3Spray with an insecticide.

    • ‘Mention the word malaria or Dengue fever and the knee-jerk reaction is to fog and spray the entire area with deadly poisons.’
    • ‘Never spray or fog a house with insecticides to combat lice.’
    • ‘The city had decided to temporarily halt the mosquito fogging program.’
    • ‘The erstwhile ‘Goodbye Mosquito’ programme, which depended heavily on chemical sprays and fogging to tackle the menace, had turned out to be a fiasco.’
    • ‘Dueck says the grounds will be fogged for mosquitoes.’

Phrases

  • the fog of war

    • Confusion caused by the chaos of war or battle.

      ‘he argues that the fog of war clouded everyone's judgement’
      • ‘He deceived us, or he wasn't clairvoyant in the fog of war.’
      • ‘Disastrous judgments in battle are often attributed to the fog of war.’
      • ‘In real-time, counter-terrorism has its own equivalent of the fog of war.’
      • ‘In many ways, we are not going to be entirely happy with the implications of lifting the fog of war.’
      • ‘Once again the strategic goal of a two-state solution is obscured by the fog of war.’
      • ‘Such an error might have been the sort of misunderstanding which arises in the fog of war.’
      • ‘How they died is not always clear in the Department of Defense releases or in the fog of war on the ground.’
      • ‘For the moment at least, things remain shrouded by the fog of war.’
      • ‘The question of being interrogated at gunpoint under a threat of shooting could be excused under the fog of war.’
      • ‘The second section of the film takes place in the fog of war.’

Origin

Mid 16th century: perhaps a back-formation from foggy.

Pronunciation:

fog

/fɒɡ/

Main definitions of fog in English

: fog1fog2

fog2

noun

  • 1[mass noun] The grass which grows in a field after a crop of hay has been taken.

    • ‘If the humidity is too high, the fog just grows and grows out of control.’
    1. 1.1Long grass left standing in a pasture and used as winter grazing.

Origin

Late Middle English: origin uncertain; perhaps related to Norwegian fogg.

Pronunciation:

fog

/fɒɡ/