四胡 Traditional form: 四胡 Pinyin (reading): sìhú Definitions: sihu (or "khuurchir" in Mongolian), a bowed instrument with four strings, primarily associated with Mongolian and Chinese culture Characters: 四 - four 胡 - recklessly, foolishly; wildly Traditional characters: 四 - four 胡 - recklessly, foolishly; wildly