roar

a deep prolonged loud noise

a very loud utterance (like the sound of an animal); "his bellow filled the hallway"

the sound made by a lion

make a loud noise, as of wind, water, or vehicles; "The wind was howling in the trees"; "The water roared down the chute"

utter words loudly and forcefully; "`Get out of here,' he roared"

emit long loud cries; "wail in self-pity"; "howl with sorrow"

act or proceed in a riotous, turbulent, or disorderly way; "desperadoes from the hills regularly roared in to take over the town"-R.A.Billington

make a loud noise, as of animal; "The bull bellowed"

laugh unrestrainedly and heartily