The crossword solution for the term ONE, IN YAHTZEE is ACE, which is a 3 letter word. In the game of Yahtzee, the player is trying to roll five dice to get the highest score possible. The highest score one can get in Yahtzee is a 'Yahtzee, ' which is five of a kind. The highest scoring combination of dice is five Aces, which is worth 50 points. Therefore, the answer to the crossword clue ONE, IN YAHTZEE is ACE.