Kanji

Kanji are logographic Chinese characters, historically adapted from Chinese writing scripts, used in the writing of Japanese. They comprised a major part of the Japanese writing system during the time of Old Japanese and are still used today, along with the subsequently derived syllabic (phonographic) scripts of hiragana and katakana. Most Kanji characters have two pronunciations: kun'yomi, based on the sounds of vernacular Japanese, where the Kanji is often phonetically transcribed with furigana; and on'yomi, based on the imitation of the original Middle Chinese sound when it was borrowed from written Chinese. Some Kanji characters were indigenously invented in Japan by constructing character components derived from other Chinese characters. Read more on Wikipedia