What is what does bellow means?

Bellow is a verb that means to emit a deep, loud roar, cry, or shout. It can also refer to a loud and powerful sound resembling that of a bellow. It can be associated with animals like lions, bulls, or elephants, as well as humans in moments of anger, frustration, or urgency. The word bellow can also be used as a noun to describe the sound itself or the device used to produce it, such as a bellows, which is a tool used to pump air into a fire.