To speak or say very loudly or with a shout
A loud, deep, prolonged sound
A bellow sounded in the forest behind them, and moonlight gleamed off of the tips of falling arrows and the raised swords of the men that followed them.
Familiar coldness and silence washed over her before the quiet was replaced by the storm's furious bellow.
The industries of the town include the manufacture of wooden shoes, bellow's and agricultural implements.