The word 宝贵 is formed by combining two characters that conceptually reinforce each other to create a single, intensified meaning. The first character, 宝 (bǎo), means "treasure" or something precious by its very nature. The second character, 贵 (guì), means "valuable", "highly valued", or "esteemed". When joined, they do not simply list two qualities but blend into a unified concept that expresses something as being not merely valuable, but specifically as precious and treasured, like a rare jewel of great worth. The formation is a direct fusion of these allied ideas to convey profound value.