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   Sen·ti·nel

   /ˈsentənəl/

   

   noun

   • 1. a soldier or guard whose job is to stand and keep watch.
   • ▪ a thing that acts as an indicator of the presence of disease: "a sentinel surveillance program for influenza"

   verb

   • 1. station a soldier or guard by (a place) to keep watch: "a wide course had been roped off and sentineled with police"

   Word Origin late 16th century: from French sentinelle, from Italian sentinella, of unknown origin.

   Scrabble Points: 8

   • S

     1

   • E

     1

   • N

     1

   • T

     1

   • I

     1

   • N

     1

   • E

     1

   • L

     1

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