The "Diccionario de la lengua española" or "DLE" is the official application for the 23rd edition of the reference lexicographical work of the Real Academia Española (RAE) and the Association of Spanish Language Academies (ASALE). This Spanish language dictionary app is free of advertisements and available for access thanks to the commitment of Obra Social "La Caixa" to culture. With a user-friendly interface, users can easily and instantly resolve any doubts about the meaning of a word and its orthographic and grammatical characteristics by accessing the RAE's database.

The app features several search options, including an approximate search for words, expressions, and phrases using a powerful algorithm, an exact search for dictionary entries, a search for words using the criteria "Begins with...", "Contains...", and "Ends with...", and an option to obtain anagrams. The app also has a random search feature, shareable results on social media, a navigable entry text, an index of expressions and phrases for each entry, direct access to verb conjugations, and a "Word of the Day" feature. This education and reference app is a must-have for anyone looking to improve their Spanish language skills or simply looking for a reliable Spanish language dictionary.