bellow

bellow /ˈbɛloʊ/ verb
bellows; bellowed; bellowing
bellow
/ˈbɛloʊ/
verb
bellows; bellowed; bellowing
Britannica Dictionary definition of BELLOW
1 
: to shout in a deep voice
[no object]
[+ object]
2 
[no object] of an animal : to make a deep, loud sound

— bellow

noun, plural bellows [count]