say it: BLUH-stur
bluster is a noun and verb meaning "noisy confusion and turbulence". It carries 7 recorded senses.
noisy confusion and turbulence
“he was awakened by the bluster of their preparations”
a swaggering show of courage
a violent gusty wind
vain and empty boasting
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for bluster come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.