The Chinese word 改善 is formed by combining the character 改, meaning "to change" or "alter", with 善, meaning "good" or "virtuous". This pairing creates a compound where the concept of change is intrinsically linked to a movement toward goodness, resulting in the overall meaning of "improve" or "make better". It exemplifies how Chinese often constructs terms by merging two independent characters to convey a unified, nuanced idea through their combined semantic contributions.