6th edition of LDOCE

The brand new Longman dictionary of contemporary English for advanced students. More user-friendly and with the list of 9000 words you need to know actively at an advanced level. I had the 5th edition but have updated to the 6th. New feature by Pearson is the vocabulary checker which tells you how frequent the item of vocab is and whether the word is academic. Great stuff!

Peter Plop about Longman Dictionary of English, v7.0.1