bluster
🇺🇸
/ˈblʌstər/
🇬🇧
/ˈblʌstə(r)/
to speak loudly and with a threatening manner, but without real force
The boss blustered at the employees, but no one took him seriously.
to blow with a loud, harsh sound
The wind blustered through the trees, making a loud noise.
loud, aggressive talk without real force or effect
His threats were just bluster; he didn't really mean to hurt anyone.