Common' is an adjective used to describe something that is shared by or happening to all members of a group. 'SCRABBLE' is a word game in which players score points by placing tiles bearing a single letter onto a board divided into a 15x15 grid of squares. The value of each tile is determined by the number of points it is worth when played. Therefore, the term 'Common SCRABBLE Tile Value' refers to the number of points that are awarded for playing a particular tile in the game of SCRABBLE.