Diccionario Espanol-Ingles, Merriam-Webster

This version of Merriam-Webster's Spanish-English Dictionary is designed for the native Spanish speaker, and is a completely new bidirectional dictionary designed to meet the needs of English and Spanish speakers in a time of ever-expanding communication among the countries of the Western Hemisphere. It is intended for language learners, teachers, office workers, tourists, business travelers, and anyone who needs to communicate effectively in the English and Spanish languages as they are spoken and written in the Americas.