FastDict focuses on the mass vocabulary and machine translation technology, is a new type of online dictionary with intelligent search and massive vocabulary on the Internet. Xi'an FastDict Information Technology Co., Ltd. (www.fastdict.net) combines natural language processing technology with massive language materials, breaks through the limitations of traditional dictionaries, and develops a new model of dictionary compilation. FastDict is constantly improving every day, promoting the progress of online dictionaries. FastDict is actively developing the third-generation machine translation technology engine, establishing a global massive vocabulary and high-speed query technology. The FastDict network owns one of the most comprehensive vocabularies on the Internet. The capacity of the vocabulary in the number of non-repetitive entries is dozens of times that of traditional vocabularies. It currently has 5 million non-repetitive entries. The vocabulary contains a large number of professional terms and obscure words from all industries. The high-intelligence vocabulary generation technology (AI System) combined with manual editing ensures the authority and comprehensiveness of FastDict's word collection. In terms of dictionary query technology, FastDict adopts intelligent error-correction word query function, fuzzy word query function, web page word query function and other dictionary application modes. Behind the simple interface, it contains a series of intelligent technologies such as word classification, Chinese word segmentation, word frequency statistics, relevance calculation, fuzzy matching, and adaptive search. Users can enter English words, English phrases, English sentences, Chinese characters, Chinese words, Chinese sentences, etc. for queries at will. The artificial intelligence of the dictionary will automatically understand what users want to find and automatically help everyone quickly get the required words, phrases, sentences or their relevant explanations, examples, usage, etc.