The compound word **纯真 (chúnzhēn)**, meaning "pure and genuine" or "innocent," is formed by combining two independent, semantically similar characters to create a nuanced, abstract concept. The first character, **纯 (chún)**, carries the core meaning of "pure," "unmixed," or "unadulterated," often describing a quality of sincerity or simplicity. The second character, **真 (zhēn)**, means "true," "real," or "genuine." When paired in this coordinative structure, the two morphemes reinforce and refine each other, with "纯" emphasizing an uncorrupted state and "真" emphasizing authenticity, together evoking a profound sense of untouched sincerity and heartfelt innocence that is greater than the sum of its parts.