The word 具体 is formed through the conceptual combination of its two component characters: 具 (jù), which carries the core meaning of "tool" or "to have/provide", and 体 (tǐ), which means "body", "form", or "substance". Together, they create a new idea by metaphorically suggesting that something abstract (an idea, a plan, a description) is provided with the necessary tools or elements to give it a tangible, well-defined form or body, thus moving from the vague to the concrete and detailed.