not solid; having a space or gap or cavity; a hollow wall; a hollow tree; hollow cheeks; his face became gaunter and more hollow with each year'

a cavity or space in something; hunger had caused the hollows in their cheeks'

a small valley between mountains; he built himself a cabin in a hollow high up in the Appalachians

[ Syn: holler ]

a depression hollowed out of solid matter

[ Syn: hole ]

as if echoing in a hollow space; the hollow sound of footsteps in the empty ballroom'

devoid of significance or point; empty promises; a hollow victory; vacuous comments

[ Syn: empty , vacuous ]

remove the inner part or the core of; the mining company wants to excavate the hillside

[ Syn: excavate , dig ]

remove the interior of; hollow out a tree trunk

[ Syn: hollow out , core out ]