From "La Carcajada," 1872, found in Duke Libraries Special Collection.
Free online version of the Collins Bilingual Spanish-English dictionary.
This is the online version of the Spanish language dictionary created by the Spanish Royal Academy.
Online version of the Panhispanic Dictionary of Doubts. Its aim is to clarify common problems regarding the use of the language throughout the Spanish-speaking world. Developed in conjunction with the 21 other Spanish language academies located in the Americas and the Philippines.
This database, created by the Spanish Royal Academy, allows simultaneous search in 57 Spanish language historical dictionaries published from 1726 to 1992.
This web page lists both general and specialized Spanish dictionaries or multiple dictionaries directly from one interface.