smog

noun

ˈsmäg How to pronounce smog (audio)
Definition of smognext
as in haze
an atmospheric condition in which suspended particles in the air rob it of its transparency the city's smog was once so bad that darkness often prevailed, even at noon

Synonyms & Similar Words

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Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of smog Ben Levinson cited worsened air quality and visibility due to smog. — Laura Horne, Charlotte Observer, 13 Aug. 2026 Ahead of Thursday’s meeting, the AQMD also added conditions to mandate that Lineage continue tracking ammonia, smog-forming emissions and toxic air contaminants. — Tony Briscoe, Los Angeles Times, 6 Aug. 2026 Opponents point to research showing emissions from higher blends could worsen summer smog while encouraging the conversion of grasslands for corn farming. — Makenzie Huber, States Newsroom, 6 Aug. 2026 Rain can increase visibility when there’s smog, but its effect on air pollution is less certain, the weather service said. — Finnegan Belleau, Chicago Tribune, 19 July 2026 See All Example Sentences for smog
Recent Examples of Synonyms for smog
  1. haze
  2. fog
  3. cloud
  4. mist
Noun
  • White Settlement residents may notice a smoky haze or strong odor even though the fire is a significant distance away, the department said in a social media post.
    — Shambhavi Rimal, Fort Worth Star-Telegram, 27 Aug. 2026
  • Plantation owners and traditional farmers often start fires to clear land for farming at low cost, triggering hazardous haze that reduces visibility, disrupts land and air transportation and threatens public health.
    — Muhammad Hatta, Los Angeles Times, 25 Aug. 2026
Definition of haze
Noun
  • The fog should gradually lift and dissipate around 9 am EDT this morning.
    — NC Weather Bot, Charlotte Observer, 22 Aug. 2026
  • The marine layer — the region’s natural air conditioning — is expected to remain thick through the weekend, with the possibility of coastal fog and drizzle.
    — Rick Hurd, Mercury News, 21 Aug. 2026
Definition of fog
Noun
  • Arm moves into mainframes Arm processors have become widely used across cloud infrastructure, mobile devices and increasingly AI computing.
    — Neetika Walter, Interesting Engineering, 25 Aug. 2026
  • That bill will likely face industry pushback, CNBC suggested, since cloud providers would bear the cost of that new compliance regime, including implementing better know-your-customer protocols.
    — Ashley Belanger, ArsTechnica, 24 Aug. 2026
Definition of cloud
Noun
  • The backgrounds are sparse and artifical, with generous bloomed lighting and mist applied to seemingly random places.
    — Wilson Chapman, IndieWire, 21 Aug. 2026
  • Whereas for makeup wear, pro makeup artist Naoko Scintu, who counts Kate Hudson, Florence Pugh, and Maude Apatow as clients, says a mist can add a first layer of hydration or a weightless dewiness to your look.
    — Kiana Murden, Vogue, 21 Aug. 2026
Definition of mist

Browse Nearby Words

smocking
smog
smoggy
See all Nearby Words

Cite this Entry

“Smog.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/smog. Accessed 29 Aug. 2026.

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More from Merriam-Webster on smog

Britannica.com: Encyclopedia article about smog

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