The Chinese word "单枪匹马" is formed by combining four characters: 单 meaning "alone", 枪 meaning "spear", 匹 meaning "a single" (often for horses), and 马 meaning "horse". Literally, the phrase translates to "single spear, single horse", originating from the image of a warrior entering battle alone on horseback with only a spear, thus metaphorically representing acting independently.