Like Niagara Falls, sound-wise

Usage examples of aroar.

Loop was aroar with the noon hour rush, and elevated trains rumbled above our heads as we turned down Wabash Avenue.

Through aroar like surf, she heard the man's laboured breathing as he liftedher off the ground.

Next Chemos, th' obscene dread of Moab's sons, From Aroar to Nebo and the wild Of southmost Abarim.