This is a unique application for the TOEFL® test. It is designed for self-study, and it provides a complete and structured approach to learning the TOEFL vocabulary. The 400 Must Have Words application is highly effective and efficient.

It is based on a concept that many people find difficult to learn and understand: vocabulary. We believe that learning vocabulary is one of the most important and difficult parts of studying in any subject. Learning a foreign language is a long and difficult process, and this process is made even more difficult if you have to learn vocabulary.

We decided to design this application in a different way. The first thing that we decided to do is to make this application self-studying. We hope that our approach will help you understand and learn vocabulary better than before.