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   Boss

   /bôs/

   

   noun

   • 1. a stud on the center of a shield: "a heavy wooden shield with a metal boss"
   • ▪ a piece of ornamental carving covering the point where the ribs in a vault or ceiling cross.
   • ▪ the central part of a propeller, wheel, or circular object: "the impact-absorbing boss of a steering wheel"
   • 2. a large mass of igneous rock protruding through other strata.
   • 3. an enlarged part of a shaft.

   Word Origin Middle English: from Old French boce, of unknown origin.

   Scrabble Points: 6

   • B

     3

   • O

     1

   • S

     1

   • S

     1

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