1.  shortstop(n = noun.person) - (baseball) the person who plays the shortstop position;
is a kind of infielder

2.  shortstop(n = noun.act) short - the fielding position of the player on a baseball team who is stationed between second and third base;
is a kind of position
is a member of baseball team

   The player stationed in the field bewtween the second and third bases. [1913 Webster]

shortstop, n. a baseball fielder near second base.