The term 'alphabetical ORDER' refers to the arrangement of words, phrases, and other items in a list according to the letters of the alphabet. This can be done in a variety of ways, such as in ascending or descending ORDER, or by indexing the items. The crossword solutions for this term are ORDER (5 letters), ORDERED (7 letters), INDEXED (7 letters), and STU (3 letters). ORDER is the most basic form of alphabetical ORDER, where the items are simply listed in ascending or descending ORDER. ORDERED is similar to ORDER, but implies that the items have been specifically arranged in alphabetical ORDER. INDEXED is a more complex form of alphabetical ORDER, where the items are organized into categories and subcategories. STU is an acronym for 'Sort, Tabulate, and Unite, ' which is a method of organizing data into alphabetical ORDER.