vocaDB features:
1. Sentence Search
2. Extract words and idioms
3. Search result by Users level
4. Reverse search (Non-English to English)
5. Customized dictionary with image
6. Support 38 languages
7. Search & Save
8. Linked Extract words and Translation
9. Dictionary APIs
This app is developed using vocaDB APIs
http://www.vocabdb.com/apis/