Meanings
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1
noun
pompous, inflated language with little real meaning
The speech offered patriotic bombast instead of a practical plan.
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2
noun
cotton or other soft material used as padding in clothing, in historical use
The tailor packed the doublet with bombast to create a broader silhouette.
Thesaurus
Etymology
From Old French bombace ("cotton, wadding"), ultimately from Greek bombyx ("silkworm; silk"). Because bombast was used to stuff and enlarge clothing, the word came to describe speech or writing inflated with high-sounding language.