+ 100,000 words, phrases and meanings, including the Academic Word List
+ 40,000 corpus-based examples
+ Integrated Thesaurus explains 6000 synonyms, antonyms and related words
+ 20,000 collocations show typical word combinations + Clear definitons written using only 2000 common words + New Signpost, Grammar Usage and Language Reference + Interactive Practices help students to prepare for KET,PET,FCE and IELTS examination
Note: It CAN WORK on Windows PC. Firsr, you need to extract LASDE5.dmg by using a software called "Any to ISO" . After you install this, you just click to dmg file and choose the option"extract dmg file". Afterwards, you look for lasde5.exe in the directory LASDE5\LASDE5.app\Contents\Resources\driver_c\Program Files\Longman\LASDE5\lasde5.exe