holler

nouns

a very loud utterance (like the sound of an animal)

"his bellow filled the hallway"

bellow, bellowing, holla, holler, hollering, hollo, holloa, roar, roaring, yowl

a small valley between mountains

"he built himself a cabin in a hollow high up in the Appalachians"

holler, hollow

shout out

"He hollered out to surrender our weapons"

holler, holler out

is derived from

utter a sudden loud cry

"she cried with pain when the doctor inserted the needle"; "I yelled to her from the window but she couldn't hear me"

call, cry, holler, hollo, scream, shout, shout out, squall, yell

is derived from

complain

"What was he hollering about?"

beef, bellyache, bitch, crab, gripe, grouse, holler, squawk