• ES Dictionary
• Word Reference
• Spandict
• Diccionarios.com
• University of Oviedo Spanish to English
• Freedict.com
• Travlang

All of the online dictionaries on the right have plenty of words and work as well as can be expected for an online dictionary. Remember they are best used to find the Spanish version of one, or at most, two words. Avoid using them as anything else but a spanish-english (or English-Spanish) dictionary. They are not automatic translators. If you are looking for a free resource to translate sentences, paragraphs or even a whole website, click here.