1. A small valley between mountains; a low spot surrounded by elevations.
    He built himself a cabin in a hollow high up in the Rockies.
  2. A sunken area or unfilled space in something solid; a cavity, natural or artificial.
    the hollow of the hand or of a tree
  3. (US) A sunken area.
  4. A feeling of emptiness.
    a hollow in the pit of one's stomach


  1. to make a hole in something; to excavate

Verb (etymology 2)

  1. To urge or call by shouting; to hollo.


  1. (of something solid) Having an empty space or cavity inside.
    a hollow tree; a hollow sphere
  2. (of a sound) Distant, eerie; echoing, reverberating, as if in a hollow space; dull, muffled; often low-pitched.
    a hollow moan
  3. Without substance; having no real or significant worth; meaningless.
    a hollow victory
  4. Insincere, devoid of validity; specious.
    a hollow promise
  5. Depressed; concave; gaunt; sunken.


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


The above text is a snippet from Wiktionary: hollow
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