Vapour
Part of speech: verb
Definition: To become vapour; to be emitted or circulated as vapour. To turn into vapour. To use insubstantial language; to boast or bluster.
Part of speech: noun
Definition: The gas phase component of a liquid or solid. The gaseous state of a substance that is normally a solid or liquid.
Evaporation
Part of speech: noun
Definition: The process of a liquid converting to the gaseous state.The process in which all or a portion of liquid (in a container) is turned into vapour, in order to increase the concentration of solid matter in the mixture.That which is evaporated; vapour.