A new statistics glossary has been released, encompassing a greater number of concepts than its predecessor. Furthermore, it provides more comprehensive explanations and includes links to relevant resources for each term. Currently, the glossary is available exclusively in Spanish. An English version will be made available at the earliest opportunity.
You can consult this new glossary at the following link:
https://www.bde.es/webbe/en/estadisticas/recursos/glosario/terminos-con-a.html