The Chinese word 疤痕 (bāhén) for "scar" is a compound formed by combining two characters with semantically related meanings: 疤 (bā) specifically denotes the scab or mark left by a wound, focusing on the physical manifestation, while 痕 (hén) refers more broadly to a trace, mark, or impression left behind. Together, they create a single, nuanced term where 疤 provides the core concept of a wound's residual mark and 痕 reinforces the idea of a lasting imprint, resulting in a word that comprehensively describes a scar as both the physical evidence and the lingering trace of a healed injury.