vapor.
Cloudy diffused matter such as mist, steam or fumes suspended in the air.
Meaning & usage
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.
Hypochondria; melancholy; the blues; hysteria, or other nervous disorder.
Wind; flatulence.
Where this word comes from
Etymology tree Proto-Italic *kwapōs Latin vapor Old French vapeurder. Old French vaporbor. Middle English vapour English vapor From Middle English vapour, from Anglo-Norman vapour, Old French vapor, from Latin vapor (“steam, heat”).
To become vapor; to be emitted or circulated as vapor.
To turn into vapor.
To emit vapor or fumes.
To use insubstantial language; to boast or bluster.
To give (someone) the vapors; to depress, to bore.
Where this word comes from
Etymology tree Proto-Italic *kwapōs Latin vapor Old French vapeurder. Old French vaporbor. Middle English vapour English vapor From Middle English vapour, from Anglo-Norman vapour, Old French vapor, from Latin vapor (“steam, heat”).
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.