Bellow : nm (word coming from bellow). Cattle cry (lowing, lowing).
By familiar analogy: powerful and prolonged sound.
The bellowing of a singer, of a radio.
Quotation from the French writer Louis-Ferdinand Destouches aka Céline (1894-1961): “When will they bellow loud enough? That's all. What does coat color matter? Red, green, yellow or reseda? That's not the question. It's not the opinions that count, it's the loudness of the bellows and the number of beasts. A good political herd, well fanaticized, well howler, is gold in bar. " in School of corpses -1938.