This bidirectional dictionary contains over 1,000,000 words, including business technical and legal terminology and slang. Built-in English- Vietnamese, Vietnamese- English, English-English, Professional, Practical, Conversation Dictionaries. Professional dictionary categories: Medicine, Electronic, Law, Construction, Economics, Business, Tourism, etc. Practical dictionary categories: Food, Sports, Health, Apparel, Housing, Traffic, People, Animal, Nature, Culture, Art, Society interaction, Religion, Business, Finance, Law, etc. Conversational dictionary categories: Greeting, Compliments, Tourism, Traffic, Restaurants, Hotels, Shopping, Entertainment, Health, Service centers, Jobs-finding. Conversation sentences in English, Vietnamese, French, Chinese, Spanish and Japanese.