English Dictionary

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vapour or (US) vapor (ˈveɪpə Pronunciation for )



  1. particles of moisture or other substance suspended in air and visible as clouds, smoke, etc
  2. a gaseous substance at a temperature below its critical temperature Compare gas (sense 3)
  3. a substance that is in a gaseous state at a temperature below its boiling point
  4. (rare) something fanciful that lacks substance or permanence
  5. See the vapours


  1. to evaporate or cause to evaporate; vaporize
  2. (intransitive) to make vain empty boasts; brag

Derived Forms

ˈvapourable, (US) ˈvaporable adjective
ˌvapouraˈbility, (US) ˌvaporaˈbility noun
ˈvapourer, (US) ˈvaporer noun
ˈvapourish, (US) ˈvaporish adjective
ˈvapourless, (US) ˈvaporless adjective
ˈvapour-ˌlike, (US) ˈvapor-ˌlike adjective
ˈvapoury, (US) ˈvapory adjective

Word Origin

C14: from Latin vapor

Translations for 'vapour'

  • British English: vapour Vapour consists of tiny drops of water or other liquids in the air, which appear as mist. NOUN...water vapour.
  • Brazilian Portuguese: vapor
  • Chinese: 蒸汽
  • European Spanish: vapor
  • French: vapeur
  • German: Dampf
  • Italian: vapore
  • Japanese: 蒸気
  • Korean: 증기
  • Portuguese: vapor
  • Spanish: vapor

Example Sentences Including 'vapour'

Above this altitude, water vapour will condense out to form clouds, below it water will remain in its gaseous state.
New Scientist (1998)
Huge floating turbines that suck up seawater and spray vapour into clouds to fall as rain could soon be fighting droughts.
Times, Sunday Times (2002)
Inhalation Steam vapour inhalations to which essential oils have been added are used for respiratory conditions.
Tisserand, Maggie Aromatherapy for Women
It was raining outside, a fine misty drizzle that hung like vapour in the air.
Stuart Harrison LOST SUMMER (2002)
Special lighting illuminated the exhaled vapour , which hung in the air like dust particles in sunlight.
canada.com (2004)
The high vapour trail of an aircraft, heading for Tashkent or even Moscow, drew a thread across the largest patch of blue.
Thomas, Craig The Last Raven
The rain had thinned to a light drizzle, wisps of white cloud vapour trickling between the trees.
Innes, Hammond High Stand
The winds also have to be light enough not to disperse the vapour over too wide an area.
Glasgow Herald (2001)
These redesigned surfaces wick water vapour from the air, then hold the extracted water in place.
Globe and Mail (2003)


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