I am making a dictionary application, the database contains more than 50k words.I am using a `AutoCompleteTextView` for showing the words while the user searches. I think it will be a huge task to load all the data and bind with `AutoCompleteTextView` at first, so I thought of loading data when keypress event happens.

Hitting the database for every button press event is also a bad idea as it is heavy, So is there any optimal way to do this ?. Since the app size matters I am not preferring to use Realm or any other database. 

Any help will be appreciated