#1 bellow v. [bawl] shout loudly and without restraint. wn
#2 bellow n. [bellowing, holla, holler, hollering, hollo, holloa, roar, roaring, yowl] a very loud utterance (like the sound of an animal); "his bellow filled the hallway". wn
#3 bellow n. [Bellow, Saul Bellow, Solomon Bellow] United States author (born in Canada) whose novels influenced American literature after World War II (1915-2005). wn
#4 bellow v. [roar] make a loud noise, as of animal; "The bull bellowed". wn
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