The Chinese word **高效** is a compound adjective formed by combining two individual characters: **高** (*gāo*), meaning "high" or "elevated," and **效** (*xiào*), meaning "efficiency," "effectiveness," or "result." It follows a common grammatical structure in Mandarin where a descriptive element (高) modifies a core substantive concept (效) to create a new, specific meaning—literally "high-efficiency." This term is used to describe processes, systems, or people that are highly effective, productive, or capable of achieving excellent results with minimal waste of time or resources, such as in the phrase **高效的方法** (*gāoxiào de fāngfǎ*, "a highly efficient method").