Hindi is a major language of India. If you're traveling to India, you may want to download English Hindi Dictionary. 

This free offline dictionary provides an in-depth definition of Hindi words and also has examples and synonyms of the words in the text. The app does not need internet connection and it works offline. 

The app will give you suggestions as you type and it also supports speech-to-text so you can easily look up any word and also add words to the study plan. The dictionary has a history to check your previous searches.