hollow

adjective

  1. 1

    devoid of significance or point

    empty promises

    a hollow victory

  2. 2

    as if echoing in a hollow space

    the hollow sound of footsteps in the empty ballroom

  3. 3

    not solid; having a space or gap or cavity

    a hollow wall

    a hollow tree

noun

  1. 1

    a depression hollowed out of solid matter

  2. 2

    a small valley between mountains

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

  3. 3

    a cavity or space in something

    hunger had caused the hollows in their cheeks

verb

  1. 1

    remove the interior of

    hollow out a tree trunk

  2. 2

    remove the inner part or the core of

    the mining company wants to excavate the hillside

Synonyms

Also useful for “hollow”:Unscrambler