校勘 jiàokān to collate Origin Definitions Defs Strokes Stroke Words Sentences Sents 校勘学 jiàokānxué textual criticism The study and practice of comparing different versions of a book or related materials to identify and correct errors in the text, aiming to restore it to its original form; also called [[校雠学|校讎學|jiao4 chou2 xue2]]