bluster

noun

1. (countable, uncountable)Pompous, officious talk.

   “Private-equity nabobs bristle at being dubbed mere financiers. Piling debt onto companies’ balance-sheets is only a small part of what leveraged buy-outs are about, they insist. Improving the workings of the businesses they take over is just as core to their calling, if not more so. Much of their pleading is public-relations bluster.”

2. (countable, uncountable)A gust of wind.
3. (countable, uncountable)Fitful noise and violence.

verb

1. To speak or protest loudly.

   “When confronted by opposition his reaction was to bluster, which often cowed the meek.”

2. To act or speak in an unduly threatening manner.

   “Your ministerial directors blustered like tragic tyrants.”

   “He bloweth and blustereth out […] his abominable blasphemy.”

   “As if therewith he meant to bluster all princes into a perfect obedience to his commands.”

3. To blow in strong or sudden gusts (refers to winds).

   “And ever-threatening storms / Of Chaos blustering round.”