vapour

Cloudy diffused matter such as mist, steam or fumes suspended in the air.

The gaseous state of a substance that is normally a solid or liquid.

Something insubstantial, fleeting, or transitory; unreal fancy; vain imagination; idle talk; boasting.

Any medicinal agent designed for administration in the form of inhaled vapour.

(in the plural) Hypochondria; melancholy; the blues; hysteria, or other nervous disorder.

Wind; flatulence.

To become vapor; to be emitted or circulated as vapor.

To turn into vapor.

“to vapor away a heated fluid”

To emit vapor or fumes.

To use insubstantial language; to boast or bluster.

To give (someone) the vapors; to depress, to bore.