Introduction：han zi 汉字介绍

A Chinese character, also known as a Han character (simplified Chinese: 汉字; pinyin: hàn zì), is a logogram used in writing Chinese (hanzi), Japanese (kanji), less frequently Korean (hanja), and formerly Vietnamese (hán tự), and other languages.

The number of Chinese characters contained in the Kangxi dictionary is approximately 47,035, although a large number of these are rarely used variants accumulated throughout history. Studies carried out in China have shown that full literacy in the Chinese language requires a knowledge of only between three and four thousand characters.

In the Chinese writing system, the characters are morphosyllabic, each usually corresponding to a spoken syllable with a basic meaning. However, although Chinese words may be formed by characters with basic meanings, a majority of words in Mandarin Chinese require two or more characters to write (thus are poly-syllabic) but have meaning that is distinct from the characters they are made from. Cognates in the various Chinese languages/dialects which have the same or similar meaning but different pronunciations can be written with the same character. Chinese characters are also the world's longest continuously used writing system.[citation needed]

Chinese characters have also been used and in some cases continue to be used in other languages, most significantly Japanese, Korean, and Vietnamese. Chinese characters are used both by meaning to represent native words, ignoring the Chinese pronunciation, and by meaning and sound, to represent Chinese loanwords. These foreign pronunciations of Chinese characters are known as Sinoxenic pronunciations, and have been useful in the reconstruction of Ancient Chinese.

Chinese characters are also known as sinographs, and the Chinese writing system as sinography.

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