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.
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.
Do you know any? Thanks a lot!