The Chinese word 愈合 (yùhé), meaning "to heal" (as in a wound), is a semantic compound formed by combining two characters that each contribute to the overall meaning. The first character, 愈 (yù), carries the core idea of "recovering from illness" or "getting better". The second character, 合 (hé), means "to close", "to join", or "to unite". Therefore, when combined, 愈合 literally and conceptually describes the process of a wound or injury recovering and closing up, perfectly capturing the complete action of healing.