Improve your written and verbal English skills with Learn English Vocabulary. A great tool for supplementing English language lessons, Learn English Vocabulary features thousands of words with definitions and sample sentences. 

The game gives you a starting letter. You have to type that letter using the game's keyboard, which will prompt the app to give you a second letter. You can, of course, type the missing letters — that is, if you know the word. Otherwise, you can tap either “skip” or “joker.” Once you have completed a word, Learn English Vocabulary will show you its definition as well as a few examples. With this app, building your English vocabulary will never be a drag again.