Spoken by over 850 million people world-wide, Mandarin Chinese is the standard language for business and trade in China, one of the six official languages of the United Nations, and the world's most widely-spoken language. This dictionary includes simplified Chinese characters and the internationally standard pinyin Romanisation for all entries. Spoken by over 850 million people world-wide, Mandarin Chinese is the standard language for business and trade in China, one of the six official languages of the United Nations, and the world's most widely-spoken language. This dictionary includes simplified Chinese characters and the internationally standard pinyin Romanisation for all entries.