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bombast
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As a noun, bombast means high-sounding words. As a verb, it means swell or fill out.
Meanings of bombast
8 meaningsnoun
figurativeHigh-sounding words; language above the dignity of the occasion; a pompous or ostentatious manner of writing or speaking.
figurativelyBombast (high-sounding words; language above the dignity of the occasion; a pompous or ostentatious manner of writing or speaking.)
Older and rare meanings (3)
archaicCotton, or cotton wool.
archaicCotton, or any soft, fibrous material, used as stuffing for garments; stuffing, padding.
archaicBombast; cotton or cotton wool (raw fibers of cotton before being processed.)
verb
To swell or fill out; to inflate, to pad.
To use high-sounding words; to speak or write in a pompous or ostentatious manner.
adjective
Big without meaning, or high-sounding; bombastic, inflated; magniloquent.
Meanings from Wiktionary (CC BY-SA 4.0) and Open English WordNet (CC BY 4.0).