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Meaning of sentry

sen•try

Pronunciation: (sen'trē), [key]
— pl. -tries.
  1. a soldier stationed at a place to stand guard and prevent the passage of unauthorized persons, watch for fires, etc., esp. a sentinel stationed at a pass, gate, opening in a defense work, or the like.
  2. a member of a guard or watch.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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