bɔl ˈbɛloʊ ˈbɛləʊ ˈbɛloʊ ˈbɛləʊ ɹɔː ɹɔɹ ɹo(ː)ɹ ɹɔː ɹɔɹ ɹo(ː)ɹ ˈɹɔːɹɪŋ shout loudly and without restraint make a loud noise, as of animal The bull bellowed a very loud utterance (like the sound of an animal) his bellow filled the hallway