British Council
Learning English vocabulary online with British Council is a free English vocabulary learning website with a huge vocabulary of many different fields and accompanied by pictures to help your vocabulary learning will be improved quickly and with high efficiency. Vocabulary learning is divided into 2 levels: level 1 (Beginner to pre-intermediate) and level 2 (Intermediate to upper intermediate). There are proficiency tests to help determine your level of English. Vocabulary lessons are divided into many different topics and are accompanied by a variety of interactive exercises.
Here the exercise categories are divided by purpose. Category “6 Minute English” - discussion on new topics and vocabulary, brought to you by renowned and expert BBC Learning English presenters. “X Uses of Y” - a series that gives you many uses of familiar words through stories new and old, classic and modern. They provide daily videos for you to learn useful English phrases that you can use right away. British Council offers several free online courses to help you learn basic English skills and improve your English vocabulary. It will give you confidence in everyday situations and help you improve your listening skills. You can find many common idioms used in both formal and informal contexts. This is a plus because academic vocabulary is an element you need to learn for academic success.
Website: https://englishonline.britishcouncil.org/