one game for each of the 26 letters of the alphabet. This time: The Letter ‘D’. L.L.A.M.A. is Knizia’s 2019 Spiel des Jahres ...

This means to order them as they appear in the alphabet. When sorting words in to alphabetical order, we look at the first letter of the word. That is because 'c' comes before 'd' in the alphabet.