The term 'position in the batter's box' refers to the STANCE taken by a baseball player when they are ready to hit the ball. The crossword solution for this term is 'STANCE, ' which is a six-letter word. STANCE is the way a person stands, and in the context of baseball, it is the way a batter stands in the batter's box before they swing the bat. A batter's STANCE can vary depending on their size, strength, and personal preference.