OwlBot is a free english dictionary API

If you are a language learner, Owlbot recommends you to watch "The secret of learning a new language" TED talk from Lýdia Machová and have a look into 12-Day FLUENCY Blueprint course prepared by David Rajaraman.
Are you a developer?
If you are interested in using the OwlBot API in your project, Here is a curl sample to get a hint about the format of request and response. For javascript, there is a npm package owlbot-js.
Sample curl request and response:
[email protected]:~$ curl --header "Authorization: Token <YOUR_TOKEN>" https://owlbot.info/api/v4/dictionary/ -s | json_pp