Vocabulary.com helps you learn new words, play games that improve your vocabulary, and explore language.
Whether learners are posting a quick tweet or applying for a job, When they communicate on or offline, vocabulary and the quality of the writing are a key part of the impressions made. It’s important, to learners, to be able to communicate clearly and come across as intelligent human beings.
This free website - Vocabulary.com - claims it can help users improve their vocabulary by figuring out which words they don’t know, and then concentrating of teaching them (without spending time on stuff users already know).
The first step is a multiple-choice test aimed to assess current vocabulary.