Merriam-Webster has a very popular Spanish to English dictionary. Merriam-Webster's Spanish-English dictionary highlights Latin American Spanish and serves a wide range of Spanish learners and skill levels.
The Merriam-Webster Spanish-English Dictionary is a best-selling tool that contains essential vocabulary and current Spanish terms. The dictionary is bi-directional (English to Spanish or Spanish to English) and contains both words and phrases. This dictionary can be used for a range of purposes and by individuals of many different skill levels. Merriam-Webster also has a pocket version of their Spanish-English Dictionary, which is more compact and concise and is designed for use on-the-go.