Definition of out-bellow in US English:

out-bellow

verb

  • with object To outdo in bellowing; to roar louder than; to overcome by bellowing or loud noise.

Origin

Early 17th century; earliest use found in Joseph Hall (1574–1656), bishop of Norwich, religious writer, and satirist. From out- + bellow.

Pronunciation

out-bellow

/ˌaʊtˈbɛləʊ/