<Li> Play at least one tile on the board, adding the value of all words formed to the player's cumulative score </Li> <P> A proper play uses one or more of the player's tiles to form a continuous string of letters that make a word (the play's "main word") on the board, reading either left - to - right or top - to - bottom . The main word must either use the letters of one or more previously played words or else have at least one of its tiles horizontally or vertically adjacent to an already played word . If any words other than the main word are formed by the play, they are scored as well, and are subject to the same criteria of acceptability . See Scoring for more details . </P> <P> A blank tile may represent any letter, and scores zero points, regardless of its placement or what letter it represents . Its placement on a double - word or triple - word square causes the corresponding premium to be applied to the word (s) in which it is used . Once a blank tile is placed, it remains that particular letter for the remainder of the game . </P> <P> After making a play, the player announces the score for that play, then if the game is being played with a clock, starts his or her opponent's clock . The player can change his play anytime his or her clock is running, but commits to the play when he or she starts the opponent's clock . The player then draws tiles from the bag to replenish his or her rack to seven tiles . If there are not enough tiles in the bag to do so, the player takes all the remaining tiles . </P>

What does triple word score mean in scrabble
find me the text answering this question