IELTS Vocabulary: 600 Academic Words In 30 Days (Learn And Practice) IELTS, the International English Language Testing System, is designed to assess the language ability of candidates who need to study or work where English is used as the language of communication. IELTS is required for entry to university in the UK and other countries. There is no specific vocabulary section in the IELTS test but you will need to understand and be able to use a large number of words to do well in all sections of the exam. This app is a handy tool for IELTS vocabulary builders who are working hard to improve score in future IELTS exam. Every test contains 20 questions and each question has 4 answer options. You have to select the correct answer. In the end of each test you can check your answers. At the end of each test is evaluated your score, which you can later improve.