Alphabetical is one way of ordering items, which involves arranging them in the ORDER of the letters of the alphabet. This type of ordering is often used for cataloging items such as books, documents, and other items that need to be organized. Alphabetical ORDER is also used in dictionaries and other reference materials, as it makes it easier to find specific words or phrases. Alphabetical ORDER is a simple and effective way of organizing items, and it is often used in many different contexts.