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  • dew
    dew
    noun
    moisture condensed from the atmosphere, especially at night, and deposited in the form of small drops upon any cool surface.
  • DEW
    DEW
    distant early warning.
Synonyms

dew

1 American  
[doo, dyoo] / du, dju /

noun

  1. moisture condensed from the atmosphere, especially at night, and deposited in the form of small drops upon any cool surface.

  2. something like or compared to such drops of moisture, as in purity, delicacy, or refreshing quality.

  3. moisture in small drops on a surface, as tears or perspiration.

  4. Informal.

    1. Scotch whisky.

    2. mountain dew.


verb (used with object)

dews, present (3rd person singular) dewed, past participle, past dewing present participle
  1. to wet with or as with dew.

DEW 2 American  
[doo, dyoo] / du, dju /
  1. distant early warning.


dew British  
/ djuː /

noun

    1. drops of water condensed on a cool surface, esp at night, from vapour in the air

    2. ( in combination )

      dewdrop

  1. something like or suggestive of this, esp in freshness

    the dew of youth

  2. small drops of moisture, such as tears

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

verb

  1. poetic (tr) to moisten with or as with dew

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
dew Scientific  
/ do̅o̅ /
  1. Water droplets condensed from the air, usually at night, onto cool surfaces near the ground. Dew forms when the temperature of the surfaces falls below the dew point of the surrounding air, usually due to radiational cooling.

  2. See also frost


Other Word Forms

Derived Forms

Inflected Forms

Participles

Conjugated Forms

Present

Past

Future

Etymology

Origin of dew

before 900; Middle English; Old English dēaw; cognate with German Tau, Old Norse dǫgg

Explanation

Dew is moisture caused by condensation of water vapor in the air. Dew is what gets your feet wet when you walk across the grass on a summer morning. Think about a summer night — the sun goes down and the air begins to cool, along with everything that is outside, like grass. Then the sun comes up. The air heats up again, more quickly that the objects. This causes condensation — dew — on grass, plants, car windshields, and so on. Dew quickly evaporates in the sun. That's why you really only see and feel it early in the morning during summer.

Keep Reading on Vocabulary.com

Vocabulary lists containing dew

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

He also came to treasure his time mowing the fairways each morning before the golfers arrived, the dew glistening on the grass while the nibbling, untroubled deer looked on from the rough.

From The Wall Street Journal Jun. 11, 2026

"So we'll be trying to lose the odd toss, but no, you've got to try and factor in the dew, the opposition and what you think the pitch might do."

From Barron's Feb. 5, 2026

A higher dew point means the air is moister and thus will feel muggier.

From Slate Jun. 25, 2025

“Pulsing Lifters,” in an arrangement for two pianos and harpsichord, is like a delicate dew.

From Los Angeles Times Jun. 12, 2025

The daylight grew and the air became warm; the dew faded off turf and leaf.

From "The Two Towers" by J. R. R. Tolkien

Estimates of the potential market for DEW vary widely, as they often do in emerging defense categories, but most point in the same direction: rapid growth from a still-small base.

From MarketWatch Jun. 29, 2026

Billions of dollars have been invested in the technology, and in 2018 the US Navy ordered two DEW prototypes for around $75 million each.

From Barron's Mar. 16, 2026

Umi Patel, the Vice President of consumer insights and analytics at PepsiCo Beverages North America, said the new visual identity "tested positively and drove positive purchase intent across DEW loyalists, Gen Z and millennial consumers."

From Salon Oct. 10, 2024

DEW stands for directed energy weapons — which use technology like high-energy lasers instead of projectiles like bullets.

From Seattle Times Sep. 1, 2023

On Thursday morning all broadcasts broke off to report that the DEW line of radars across Canada had reported objects in the air moving across the North Pole toward the United States.

From Long Ago, Far Away by Leinster, Murray

After long basking on the French Riviera, Somerset Maugham returned to London for a ten-week chill in Britain's foggy-foggy autumnal dews.

From Time Magazine Archive

The stillness of noon, the depths of twilight, and the dews and pearls of the morning, are all to be found on the | canvases of this most benevolent and kindhearted man.

From Time Magazine Archive

While the groups that attacked Javits professed to reflect the dews of U.S.

From Time Magazine Archive

He stooped to remove his shoes, damp with the heavy dews of pasture and field.

From "Across Five Aprils" by Irene Hunt

Hae ye mark'd the dews o' morning, Glittering in the sunny ray, Quickly fa' when, without warning, Rough blasts came and shook the spray?

From The Genius of Scotland or Sketches of Scottish Scenery, Literature and Religion by Turnbull, Robert

In the Philippines a native combo dewed the eyes of the crew of an LST with a proud performance of Stardust.

From Time Magazine Archive

The sky is pale blue there, dewed with yellow.

From "The Inquisitor's Tale" by Adam Gidwitz

Their corners were vague, their facades streaked, dewed, smeared.

From "The Left Hand of Darkness" by Ursula K. Le Guin

A cold sweat dewed on my neck as I descended the stairs.

From "The City Beautiful" by Aden Polydoros

In the corner of my eye, I could only see a hint of him—eyes as incandescently blue as the heart of fire, a briar of dark hair dewed with lagoon water.

From "The City Beautiful" by Aden Polydoros

Sadly not, for the dewing is done by sprinklers, and the baby is alone.

From The New Yorker Apr. 5, 2019

He merely found himself abruptly in full possession of his senses, nerves tingling, moisture dewing his forehead, his whole being concentrated in the one act of—listening!

From Shoe-Bar Stratton by Gage, George W.

"I say, Capting," said a tall Yankee in a fur hat, to Peter, "what may yew calculate dewing on Long Island?"

From Red, White, Blue Socks, Part First Being the First Book by Barrow, Sarah L.

In our isle’s enchanted hall, Hands unseen thy couch are strewing, Fairy strains of music fall, Every sense in slumber dewing.

From Born to Wander A Boy's Book of Nomadic Adventures by Stables, Gordon

Captain West spoke to the mate, who bawled the order along, and the watch, reinforced by the watch below, began dewing up the mainsail and foresail and climbing into the rigging.

From The Mutiny of the Elsinore by London, Jack

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