Definitions from Wiktionary (vapor)

▸ noun:  Cloudy diffused matter such as mist, steam or fumes suspended in the air.
▸ noun:  The gaseous state of a substance that is normally a solid or liquid.
▸ noun:  Something insubstantial, fleeting, or transitory; unreal fancy; vain imagination; idle talk; boasting.
▸ noun:  (dated) Any medicinal agent designed for administration in the form of inhaled vapour.
▸ noun:  (archaic, in the plural) Hypochondria; melancholy; the blues; hysteria, or other nervous disorder.
▸ noun:  (obsolete) Wind; flatulence.
▸ verb:  (intransitive) To become vapor; to be emitted or circulated as vapor.
▸ verb:  (transitive) To turn into vapor.
▸ verb:  To emit vapor or fumes.
▸ verb:  (intransitive) To use insubstantial language; to boast or bluster.
▸ verb:  (transitive) To give (someone) the vapors; to depress, to bore.

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