西域 せいいき Meanings Noun western regions of China Kanji 西 west. Read as セイ. 域 region. Read as イキ. Words containing 西域 西域都護府 (せいいきとごふ) Protectorate General of the Western Regions (Han-period Chinese office established in East Turkestan in 60 BCE) Jinuma: Japanese Dictionary · Word lists