(noun, adjective, verb, adverb, interjection)


1. not solid; having a space or gap or cavity

- a hollow wall

- a hollow tree

- hollow cheeks

Similar word(s): empty, cavernous, recessed, sunken, fistular, fistulate, fistulous, cannular, tubelike, tubular, vasiform

2. as if echoing in a hollow space

- the hollow sound of footsteps in the empty ballroom

Similar word(s): reverberant

3. devoid of significance or force

- a hollow victory

Similar word(s): meaningless, nonmeaningful, empty, vacuous

4. lacking in substance or character

- a hollow person

Similar word(s): insubstantial, unreal, unsubstantial

Sentences with hollow as an adjective:

- a hollow tree; a hollow sphere

- a hollow promise


1. (colloquial) Completely, as part of the phrase beat hollow or beat all hollow.


1. a cavity or space in something

- hunger had caused the hollows in their cheeks

Definition categories: shape, cavity

2. a small valley between mountains

- he built himself a cabin in a hollow high up in the Appalachians

Similar word(s): holler

Definition categories: object, vale, valley

3. a depression hollowed out of solid matter

Similar word(s): hole

Definition categories: object, depression

Sentences with hollow as a noun:

- He built himself a cabin in a hollow high up in the Rockies.

- the hollow of the hand or of a tree

- a hollow in the pit of one's stomach


1. remove the inner part or the core of

Similar word(s): dig, excavate

Definition categories: contact, remove, take, withdraw

2. remove the interior of

- hollow out a tree trunk

Definition categories: contact, empty