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Synonyms for Bluster (same or very similar meaning)

WordNet sense 1 (vain and empty boasting):
braggadocio, rhodomontade, rodomontade

WordNet sense 2 (a swaggering show of courage):

WordNet sense 3 (show off):
blow, boast, brag, gas, gasconade, swash, tout, vaunt, shoot a line

WordNet sense 4 (act in an arrogant, overly self-assured, or conceited manner):

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