All the unknown words for the 4 complete Practice Tests that are included in the Student's book: - Definitions in carefully chosen language appropriate for level C1 of the CEF - Example sentences showing how each word is used in context - Accurate Greek translations for all the words 2 extra complete Practice Tests are also included in order to help students become familiar with the new format of the exam. The Audio CD for Practice Tests 5 & 6 is included in the Student's Edition of the Companion.