The Chinese word 活力 is formed through the semantic combination of two characters: 活, which conveys the idea of "life" or "liveliness", and 力, which means "power" or "energy". Together, they create a compound where the meaning of each character contributes directly to the whole, resulting in a concept that embodies "living energy" or vitality. This process exemplifies how many Chinese words are constructed by integrating core ideas from individual characters to express a unified, often abstract, notion.