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-​ləs 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

Franklin Park crews were aided by responders from neighboring communities in preventing the fire from spreading – a job which took on complications because of the fog caused by the thawing ice at the facility, Brehm said. Staff Report, chicagotribune.com, "Fireworks are suspected cause of fire that temporarily closed Franklin Park ice arena," 5 July 2018 An officer observed the car cross the fog line onto the right shoulder twice before pulling it over. Tyler Langan, Milwaukee Journal Sentinel, "Milwaukee man charged in Menomonee Falls with 4th OWI, this time with his 13-year-old son in the car," 23 May 2018 The Monroe County Sheriff’s Office said Timothy Gill, of Gosport, was going westbound on West State Road 46 when his pickup truck drifted across the fog line and over-corrected, resulting in a head-on collision with the family’s Hyundai Santa Fe. Indianapolis Star, "3 family members killed in wreck on their way to softball tournament," 30 Apr. 2018 When police reported to Route 28, officers observed the truck cross the center line twice and almost hit the curb outside the white fog line on the right side of the road. Elise Takahama, BostonGlobe.com, "Bourne firefighter arrested for allegedly driving drunk with a loaded handgun," 7 Mar. 2018 There is a voluminous academic literature on these subjects, but a new paper in the journal Energy Policy helps to cut through the fog. David Roberts, Vox, "What made solar panels so cheap? Thank government policy.," 20 Nov. 2018 At the same time, the battlefield is getting deadlier for tanks, awash with sensors from human eyes and ears all the way up to millimetric wave radars that can see through fog and infrared sensors that can detect minute temperature changes. Kyle Mizokami, Popular Mechanics, "Stealth Tanks Are Coming," 7 Aug. 2018 Rain is returning to the Seattle area just in time for one of the busiest travel weekends of the year, after a thick blanket of fog grounded flights at Sea-Tac Airport on Tuesday morning. Agueda Pacheco-flores, The Seattle Times, "Rainy Thanksgiving awaits Seattle area after dense fog snarled Sea-Tac Airport traffic," 20 Nov. 2018 Waves crash on the sand below us, and the setting sun casts a broad sweep of light above the silvery Pacific, where tufts of fog hover on the horizon. Jeanne Cooper, SFChronicle.com, "Where to watch the sunset with a cocktail around Half Moon Bay," 11 July 2018

Recent Examples on the Web: Verb

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 In its place, the raptors come to the kitchen door and snort, fogging up the window as only a warm-blooded animal can do. NBC News, "'Jurassic World': Paleontologist who inspired Alan Grant role talks real-life dino science," 20 June 2018 But his profile is solemn: a sharp jawline, chin raised and jutted, tinted sunglasses that appear more fogged-over than tinted, hair sheared short, perhaps by an electric razor. New York Times, "The Artists Who Brought Asian-Americans Into the Annals of Contemporary Art," 12 Apr. 2018 The Wildcat webcam late Monday afternoon was fogged in, with just a few trees showing in the foreground. Katie Camero, BostonGlobe.com, "Here’s a cool thought: There’s still snow on Mount Washington," 2 July 2018 Instead, Jurassic Park featured the raptors fogging a kitchen window with their breath before opening the kitchen door — something only warm-blooded animals could do. Alessandra Potenza, The Verge, "Were real dinosaurs as bulletproof as the one in Jurassic World: Fallen Kingdom?," 19 June 2018 Read More Worker saw a 'fogged up' car in a parking lot. Kaitlyn Schwers, kansascity, "They left 13 dogs in a hot car for hours, Missouri cops say. Now they face charges," 31 May 2018 The family hiked up and skied above the lift line, the sandwiches in their pockets fogging the cellophane. Naomi Fry, The New Yorker, "Rachel Kushner’s Immersive Fiction," 23 Apr. 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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Learn More about fog

Dictionary Entries near fog

foetid

foeto-

fofarraw

fog

fogas

fogbank

fog belt

Statistics for fog

Last Updated

15 May 2019

Look-up Popularity

Time Traveler for fog

The first known use of fog was in 1544

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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

fog

verb

English Language Learners Definition of fog (Entry 2 of 2)

: to cover or fill (something) with small drops of water : to make (something) foggy
: to become foggy
: to make (someone or something) confused

fog

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

Kids Definition of fog

 (Entry 1 of 2)

1 : tiny drops of water floating in the air at or near the ground
2 : a confused state of mind I woke up in a fog.

fog

verb
fogged; fogging

Kids Definition of fog (Entry 2 of 2)

: to cover or become covered with tiny drops of water Steam from the shower fogged the mirror.
\ ˈfäg, ˈfȯg How to pronounce fog (audio) \
fogged; fogging

Medical Definition of fog

: to blur (a visual field) with lenses that prevent a sharp focus in order to relax accommodation before testing vision

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More from Merriam-Webster on fog

Rhyming Dictionary: Words that rhyme with fog

Thesaurus: All synonyms and antonyms for fog

Spanish Central: Translation of fog

Nglish: Translation of fog for Spanish Speakers

Britannica English: Translation of fog for Arabic Speakers

Britannica.com: Encyclopedia article about fog

Comments on fog

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