Learning english words. MBird play online

For success learning any new language, you need to be memorized many new words.
This app will help you memorize new words, and not forget old words.
Who needs this application:
who learns on language courses;
who teaches English at school or university;
who learns a language independently.
Did you remember as a teacher give you a small paper with new words?
Did you remember as a teacher give you a small paper with new words? After this paper often losing, confusing you.
This app will help you save and sorting all new words.