Main entry: hollow
Definition: not solid; having a space or gap or cavity
Usage: a hollow wall; a hollow tree; hollow cheeks; his face became gaunter and more hollow with each year
Antonyms: solid
Definition: entirely of one substance with no holes inside
Main entry: hollow, empty, vacuous
Definition: devoid of significance or point
Usage: empty promises; a hollow victory; vacuous comments
Antonyms: meaningful
Definition: having a meaning or purpose
Main entry: hollow
Definition: as if echoing in a hollow space
Usage: the hollow sound of footsteps in the empty ballroom
Antonyms: unreverberant, nonresonant
Definition: not reverberant; lacking a tendency to reverberate