迪化 Traditional form: 迪化 Pinyin (reading): Díhuà Definitions: Dihua or Tihwa (old name of Ürümqi 烏魯木齊/乌鲁木齐 ( Wūlǔmùqí)) Characters: 迪 - to advance, to enlighten, to make progress 化 - to change, to convert, to reform; -ize Traditional characters: 迪 - to advance, to enlighten, to make progress 化 - to change, to convert, to reform; -ize