title: Any free database of English-Spanish words?
body: <p>I want to make a Vocabulary Trainer and I was thinking about the best way to do it. First I searched some translation APIs to use, to avoid having to build my own dictionary, but I found that most of them are paid and some are free but have limitations.</p>
  
  <p>So, I think the best way is to make my own dictionary, which also allow me to work offline, but I wonder if there is any free database of English-Spanish words to avoid starting from scratch.</p>
  
  <p>Do you know any?
  Thanks a lot!</p>