This is the worlds bestselling advanced learners dictionary, recommended by learners of english and their teachers, and used by 30 million people it has more words and more help with british and american english than any other advanced learners dictionary it is the only advanced learners dictionary of list the most important words you need to know in english: the oxford 3000tm it has the compass cd-rom which gives you more than any other dictionary cd-romThis is the worlds bestselling advanced learners dictionary, recommended by learners of english and their teachers, and used by 30 million people it has more words and more help with british and american english than any other advanced learners dictionary it is the only advanced learners dictionary of list the most important words you need to know in english: the oxford 3000tm it has the compass cd-rom which gives you more than any other dictionary cd-rom