What does dew mean?
Dew is the water that condenses out of the air onto cool surfaces — most visibly on grass, leaves, spiderwebs, and cars — typically during clear, calm nights. It forms not by rainfall but when surface temperatures fall to or below the dew point, causing airborne water vapor to turn directly into tiny liquid droplets. In everyday use, dew functions as an uncountable noun: one walks 'through the dew,' finds the lawn 'covered in dew,' or consults the weather term 'dew point.' The word carries strong pastoral and literary associations, evoking freshness, dawn, purity, and quiet rural mornings, and it often appears in poetry and figurative descriptions where something glistens or hangs like dew. A closely related derivative, 'dewy,' describes anything moistly fresh, whether actual grass or metaphorically youthful eyes. Though easy to overlook, dew matters practically too: farmers and gardeners track it, and its formation signals calm, cloudless nights.
nounWater droplets that condense on cool surfaces, especially grass, plants, and other outdoor objects, overnight when the air temperature falls below the dew point.
- Water droplets condensed from atmospheric vapor onto cool surfaces, especially outdoors at night or early morning.
- Figuratively, small drops resembling dew or an atmosphere of freshness/moistness (e.g., 'tears hung like dew').
"The spiderwebs were strung with beads of dew at first light."
"We walked through the meadow before sunrise, our shoes soaked with dew."
"A light dew had settled on the windshield, blurring the streetlights into halos."
Rarely used; 'dews' appears mainly in poetic or technical writing referring to kinds or instances of dew.
"The mountain's cold dews lingered well past noon."
Dew isn't rain that fell overnight — it forms directly on blades of grass as invisible vapor turns liquid, which is why a clear, calm night leaves the heaviest sparkle by morning.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of dew
Dew comes from Old English 'dēaw', a common Germanic word whose cognates appear across the family, such as German 'Tau' and Dutch ' dauw'. These trace back to a shared Indo-European root relating to vapor and moisture. The spelling was influenced by French-derived conventions after the Middle English period, giving the modern form with its silent w. Its derivatives 'dewy', 'dewdrop', and 'dewpoint' all developed naturally within English.
Related word forms
How dew is actually used
Dew is almost always used as an uncountable mass noun; the plural 'dews' exists but is rare and largely poetic or scientific. It carries gentle, fresh, pastoral connotations and appears frequently in literary and descriptive writing about early morning or nature.
Easily confused with dew
'Due' means owed, expected, or payable, while 'dew' is moisture condensed on surfaces; they are homophones but unrelated in meaning.