Does "Xifan" in the Coming down of Xifan in the 7th Year of Zhenyuan of Xizhou Mean "Tufan"?——A Discussion of the Definition of "Xifan" in "The Grand Dictionary of Chinese Language"

Based on the extensive reading of the historical document,the author of the present article indicates that "Xifan",besides "Tufan",as the most commonly used term,it often means Turkish and Indo-European languages in the western region.Meanwhile,the definition of "Xifan" is inadequate in the Grand Dictionary of Chinese Language.