Just was pointed to this neat little service, a basic REST API to get info about any word: https://www.wordsapi.com/
It is based mainly on the WordNet database it seems, and the creator is very friendly and accessible. He also answers some questions about the project on HackerNews: https://news.ycombinator.com/item?id=8840173
WDYT? Useful for your bot project? I think I’ll definitely look into it!