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bombast.

Cotton, or cotton wool.

7 characters2 syllables approx.English language

Meaning & usage

noun/ˈbɒmbæst/Received-Pronunciation/ˈbɑmbæst/General-American/ˈbʌmbæst/obsolete
  1. Cotton, or cotton wool.

    archaic · countable · uncountable
  2. Cotton, or any soft, fibrous material, used as stuffing for garments; stuffing, padding.

    archaic · countable · uncountable
  3. High-sounding words; language above the dignity of the occasion; a pompous or ostentatious manner of writing or speaking.

    countable · figuratively · uncountable
Where this word comes from

From Old French bombace (“cotton, cotton wadding”), from Late Latin bombax (“cotton”), a variant of bombyx (“silkworm”), from Ancient Greek βόμβυξ (bómbux, “silkworm”), possibly related to Middle Persian pmbk' (“cotton”), from a Proto-Indo-European root meaning “to twist, wind”.

verb/ˈbɒmbæst/Received-Pronunciation/ˈbɑmbæst/General-American/ˈbʌmbæst/obsolete
  1. To swell or fill out; to inflate, to pad.

  2. To use high-sounding words; to speak or write in a pompous or ostentatious manner.

Where this word comes from

From Old French bombace (“cotton, cotton wadding”), from Late Latin bombax (“cotton”), a variant of bombyx (“silkworm”), from Ancient Greek βόμβυξ (bómbux, “silkworm”), possibly related to Middle Persian pmbk' (“cotton”), from a Proto-Indo-European root meaning “to twist, wind”.

adj/ˈbɒmbæst/Received-Pronunciation/ˈbɑmbæst/General-American/ˈbʌmbæst/obsolete
  1. Big without meaning, or high-sounding; bombastic, inflated; magniloquent.

Where this word comes from

From Old French bombace (“cotton, cotton wadding”), from Late Latin bombax (“cotton”), a variant of bombyx (“silkworm”), from Ancient Greek βόμβυξ (bómbux, “silkworm”), possibly related to Middle Persian pmbk' (“cotton”), from a Proto-Indo-European root meaning “to twist, wind”.

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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.