Diccionario de la lengua española

The Diccionario de la lengua española (DLE; English: Dictionary of the Spanish language) is the authoritative dictionary of the Spanish language. It is produced, edited, and published by the Royal Spanish Academy, with the participation of the Association of Academies of the Spanish Language. It was first published in 1780, as the Diccionario de la lengua castellana and subsequent editions have been published about once a decade. The twenty-third edition was published in 2014; it is available online, incorporating modifications to be included in the twenty-fourth print edition.

The dictionary was created to maintain the linguistic purity of the Spanish language; unlike many English-language dictionaries, it is intended to be authoritative and prescriptive, rather than descriptive.