DIAMOND' (7 letters) The term BASEBALL VENUE can be summarized by two crossword solutions: SANDLOT and DIAMOND. A sandlot is an informal, often public, area of land where baseball is played. It is usually an open field with no permanent structures or seating, and is often used by children and teenagers to play the game. A DIAMOND is a more formal baseball venue, typically consisting of a grass field with four bases arranged in a DIAMOND shape. It is usually found in professional and organized amateur leagues, and often includes seating and other amenities.