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Meaning of crow's-nest

crow's-nest

Pronunciation: (krōz'nest"), [key]
— n.
  1. a platform or shelter for a lookout at or near the top of a mast.
  2. any similar platform raised high above the ground, as a lookout or a station for a traffic officer.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.