\ ˈdü How to pronounce dew (audio) also ˈdyü \

Definition of dew

 (Entry 1 of 2)

1 meteorology : moisture condensed upon the surfaces of cool bodies especially at night wet with morning dew
2 : something resembling dew in purity, freshness, or power to refresh … the golden dew of sleep …— William Shakespeare
3 : moisture especially when appearing in minute droplets: such as
a : tears
b : sweat
c botany : droplets of water produced by a plant in transpiration

Definition of DEW (Entry 2 of 2)

distant early warning

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Other Words from dew


dew transitive verb
dewless \ ˈdü-​ləs How to pronounce DEW (audio) also  ˈdyü-​ \ adjective

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This is a deposit of water droplets formed at night by the condensation of water vapor from the air onto the surfaces of exposed objects. Dew forms on clear nights, when exposed surfaces lose heat by radiation and are thus usually colder than the air. The cold surface cools the air in its vicinity, and, if the air is humid enough, it may cool below its dew point, the temperature at which water vapor condenses out of the air onto the surface.

Examples of dew in a Sentence

Noun The grass was wet with the morning dew.
Recent Examples on the Web: Noun Humidity remains fairly high with dew points in the upper 60s to near 70. Washington Post, 14 July 2021 And dew points were consistently lower; the air was drier - and full of dust much of that decade due to drought and farming practices that offered scant protection for rich topsoil. Todd Nelson, Star Tribune, 13 July 2021 The exhibition consists of six distinct benches, each inspired by ancient technologies, such as sundials, sails and dew collectors, that are activated by the elements of sun, wind, earth and water. Danielle Avram, Dallas News, 7 July 2021 High pressure will bring mostly sunny skies and unseasonably low humidity levels on Wednesday with dew points mainly in the 40s., 22 June 2021 Each is surrounded by its own curved stone wall to keep in the moisture from dew and rainfall and keep out the rough, arid winds. Daniel Rolider; Text By Jennie Rothenberg Gritz, Smithsonian Magazine, 23 June 2021 With the heat comes plenty of humidity with dew points in the upper 60s to near 70. Washington Post, 20 June 2021 Any exposure to water — via fountains, rain storms, morning dew — threatens to out the kids. David Fear, Rolling Stone, 18 June 2021 Saturday will also be moderately humid with dew points climbing into the low to mid-60s., 15 June 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'dew.' 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 dew


before the 12th century, in the meaning defined at sense 1

History and Etymology for dew


Middle English, from Old English dēaw; akin to Old High German tou dew, Greek thein to run

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Time Traveler for dew

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The first known use of dew was before the 12th century

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Last Updated

17 Jul 2021

Cite this Entry

“Dew.” Dictionary, Merriam-Webster, Accessed 27 Jul. 2021.

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More Definitions for dew



English Language Learners Definition of dew

: drops of water that form outside at night on grass, trees, etc.


\ ˈdü How to pronounce dew (audio) , ˈdyü \

Kids Definition of dew

: moisture that collects on cool surfaces at night

More from Merriam-Webster on dew

Nglish: Translation of dew for Spanish Speakers

Britannica English: Translation of dew for Arabic Speakers Encyclopedia article about dew


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