If you are looking for English Synonym Antonym Dictionary App or English Synonym Antonym Collection App so you are in a right place.
This English Synonym Antonym Free App will provide you 5000+ words collection. This is an educational free application.
This English Synonym & Antonym Free Application has a user friendly interface & it also works offline.

So keep install and learn.

English Synonym Antonym Dictionary Free App Features:
User Friendly
Works Offline
Optimized for Mobile & Tablets
Definition Included with Every Word
5000+ Collection