A sunken area.
A sunken area or unfilled space in something solid; a cavity, natural or artificial.
A small valley between mountains.
A feeling of emptiness.
To call or urge by shouting; to hollo.
to make a hole in something; to excavate
Concave; gaunt; sunken.
Insincere, devoid of validity; specious.
Distant, eerie; echoing, reverberating, as if in a hollow space; dull, muffled; often low-pitched.
Without substance; having no real or significant worth; meaningless.
Pertaining to hollow body position
Having an empty space or cavity inside.
Completely, as part of the phrase beat hollow or beat all hollow.
An environment of rough activity
Rough activity; fighting or brawling; a fight.
A person who characteristically engages in such activity
active, vigorous and rough, with the possibility of harm
highly competitive
Engage in rough-and-tumble activity