Definitions
1.nounCloudy diffused matter such as mist, steam or fumes suspended in the air.
2.nounThe gaseous state of a substance that is normally a solid or liquid.
3.nounSomething insubstantial, fleeting, or transitory; unreal fancy; vain imagination; idle talk; boasting.
4.nounAny medicinal agent designed for administration in the form of inhaled vapour.
5.noun(in the plural) Hypochondria; melancholy; the blues; hysteria, or other nervous disorder.
6.nounWind; flatulence.