Oxford American WordPower Dictionary: For Learners of English

32 Study Pages in the "Dictionary offer advice and practice in essay and letter writing, phrasal verbs, word formation and prepositions. They also cover the American education system, the government, computers, the environment, and health. Written specifically for intermediate students of English as a second or foreign language. Helps build vocabulary, understand how words relate to each other, avoid common mistakes, and write and speak better English. Includes example sentences based on authentic American sources showing how words are really used in today's English; and numerous notes explaining common difficulties and showing links and contrasts between words