1 fog | Definition of fog

fog

noun
\ ˈfȯg How to pronounce fog (audio) , fäg\

Definition of fog

 (Entry 1 of 2)

1a : vapor condensed to fine particles of water suspended in the lower atmosphere that differs from cloud only in being near the ground
b : a fine spray or a foam for firefighting
2 : a murky condition of the atmosphere or a substance causing it
3a : a state of confusion or bewilderment spent the morning in a fog
b : something that confuses or obscures hid behind a fog of rhetoric
4 : cloudiness or partial opacity in a developed photographic image caused by chemical action or stray radiation

fog

verb
fogged; fogging

Definition of fog (Entry 2 of 2)

transitive verb

1 : to cover, envelop, or suffuse with or as if with fog fog the barns with pesticide
2 : to make obscure or confusing accusations which fogged the real issues
3 : to make confused
4 : to produce fog on (something, such as a photographic film) during development

intransitive verb

1 : to become covered or thick with fog
2a : to become blurred by a covering of fog or mist
b : to become indistinct through exposure to light or radiation

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Other Words from fog

Noun

fogless \ ˈfȯg-​lÉ™s How to pronounce fogless (audio) , ˈfäg-​ \ adjective

Synonyms & Antonyms for fog

Synonyms: Noun

daze, dazedness, haze, muddle, spin, swoon

Synonyms: Verb

becloud, befog, blur, cloud, confuse, muddy, obfuscate

Antonyms: Verb

clarify, clear (up), illuminate

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Examples of fog in a Sentence

Noun

Heavy fog made it difficult to see the road. a climate marked by heavy fogs The fog reduced visibility to a quarter of a mile. This problem has me in a fog.

Verb

The steam from the pot was fogging the window near the stove. The bathroom was all fogged up after my shower. politicians who try to fog the issue instead of taking a stand
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Recent Examples on the Web: Noun

Point Reyes is unmatched for whale watching (from land) in winter, ocean views and sighting marine birds (on clear days), wildflowers (in spring at the Headlands) and fog (in summer). Tom Stienstra, SFChronicle.com, "Point Reyes Lighthouse’s rebirth: Mystery solved, $5 million renovation done," 31 Aug. 2019 But as startling as the crisp and, yes, dramatic images may be, a sense of slight monotony sometimes creeps in after so many shots of ice, calving glaciers, heaving waves, sea foam, rain, snow, fog, mist, etc. Michael Sullivan, Houston Chronicle, "Documentary ‘Aquarela’ is a beautifully terrifying immersion," 29 Aug. 2019 Traditionalists will argue that domes deprive us of the very conditions—ice, snow, fog, mud—that have given the game some of its most memorable moments. SI.com, "A History of Football in 100 Objects," 28 Aug. 2019 While this weather pattern may disappoint some, many others are now on a first name basis with San Francisco's fog, known as Karl. John Blackstone, CBS News, "Cloud of mystery surrounds San Francisco's Karl the Fog," 27 Aug. 2019 Usually, however, FogCam was capturing the same mundane view of a campus street clouded in iconic San Franciscan fog, or Karl, as the thick blanket of water droplets covering the city is called online. Rachael Lallensack, Smithsonian, "Longest Running Web Cam Goes Offline This Month," 21 Aug. 2019 But the emperor’s plan was thwarted by the muddy conditions and morning fog, which prevented an early start. National Geographic, "Napoleon lost the Battle of Waterloo—here’s what went wrong," 15 Aug. 2019 As the weeks ticked by, his departure date hovered over our relationship like a fog, infusing our dynamic with a sense of urgency. Sophia Ortega, Los Angeles Times, "My mom said I’d know it was a date if he offered to drive me home," 10 Aug. 2019 The tech simulates lightning, thunder, rain, fog, even explosions and the low rumble of a passing car’s engine. John Meyer, The Know, "Colorado Parks and Wildlife will begin issuing 2019 hunting reservations later this month," 6 Aug. 2019

Recent Examples on the Web: Verb

Bob is fogged in by Alzheimer’s and unsteady from Parkinson’s. Andy Newman, New York Times, "On the Job, 24 Hours a Day, 27 Days a Month," 2 Sep. 2019 Just talking about how to write a good one — which words to use and which to avoid — is so steamy, her glasses fog up. Lisa Bonos, Dallas News, "Romance novelist Helen Hoang writes about love on the autism spectrum," 23 July 2019 Just talking about how to write a good one — what words to use and which to avoid — is so steamy, her glasses fog up. Lisa Bonos, Washington Post, "A romance novelist struggled with Asperger’s. Now she writes about love on the spectrum.," 19 July 2019 Dixon's test consisted only of the framework, not the polycarbonate laminated screen that is meant to have an anti-reflective coating on the screen's interior, anti-fogging device and possible tear-offs. Robby General, Indianapolis Star, "Scott Dixon tests IndyCar's Aeroscreen prototype in simulator," 2 July 2019 His breath, hissing out into the moonlit air, would have fogged the lenses. David Canfield, EW.com, "First Look: The Andromeda Strain is back with a new look for its 50th anniversary," 26 June 2019 The detective won’t forget the video — a bag over the little girl’s face, her tiny gasps fogging the plastic. Tim Prudente, baltimoresun.com, "Speaking for baby Rose: How a Baltimore detective found his purpose investigating child abuse," 6 June 2019 The Reflection, Celebrity’s largest ship, even offers a suite with a glass shower cantilevered out over the sea (don't worry about peeping Toms; the glass digitally fogs for privacy). Condé Nast Traveler, "The Best Cruise Lines in the World: 2018 Readers' Choice Awards," 9 Oct. 2018 In the run-up to the crisis, a housing surplus prompted mortgage lenders to issue loans to anyone who could fog a mirror just to fill the excess inventory. Jeff Andrews, Curbed, "10 years after the financial crisis, is the housing market still at risk?," 29 Aug. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'fog.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of fog

Noun

1544, in the meaning defined at sense 1a

Verb

circa 1592, in the meaning defined at transitive sense 1

History and Etymology for fog

Noun

probably back-formation from foggy

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More Definitions for fog

fog

noun

English Language Learners Definition of fog

 (Entry 1 of 2)

: many small drops of water floating in the air above the ground, the sea, etc.
: a state of mental confusion