The Free Dictionary is one of the most comprehensive dictionaries in the world. It includes dictionaries in English, Spanish, and 12 other languages. It also lets you translate from English to 40 other languages, and access tons of translation options.
With The Free Dictionary, you can check the definition of any word or even look it up in the encyclopedia. It also includes expressions with the pronunciation of every word, so you not only know what a word means, but also how to say it.
In addition to the definition of each word you look up, you can also find synonyms on the same page. You can save words as favorites, and check the word of the day as well.
The Free Dictionary is a comprehensive dictionary for Android that lets you look up practically any word you need, in almost any language you might know.