vapour >> ˈveɪpə
Definition: [noun] a substance diffused or suspended in the air, especially one normally liquid or solid.
Example: dense clouds of smoke and toxic vapour
Definition: [noun] a sudden feeling of faintness or nervousness or a state of depression.
Example: a fit of the vapours
Definition: [verb] talk in a vacuous, boasting, or pompous way.
Example: he was vapouring on about the days of his youth