English Dictionary

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vapour or (US) vapor (ˈveɪpə )



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

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
It was raining outside, a fine misty drizzle that hung like vapour in the air.
Stuart Harrison LOST SUMMER (2002)


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