'crow's nest' definitions:

Definition of 'crow's nest'

From: WordNet
noun
Platform for a lookout at or near the top of a mast

Definition of 'crow's nest'

From: GCIDE
  • crow's-nest \crow's"-nest`\, crow's nest \crow's" nest`\(kr[=o]z"n[e^]st`), n. (Naut.) A box or platform near the top of a mast, esp. in whalers, to shelter the man on the lookout. [1913 Webster]