均值 (jūn zhí) means 'mean value' or 'average'—the sum of a set of numbers divided by how many numbers there are. The character 均 (jūn) means 'even', 'equal', or 'uniform', suggesting balance and fairness; 值 (zhí) means 'value' or 'numerical quantity'. Together, they convey the idea of an evenly distributed representative value for a group of data points. This term is widely used in mathematics, statistics, science, and everyday contexts like reporting test scores, weather temperatures, or economic indicators.

Unlike colloquial terms like 平均数 (píng jūn shù), 均值 is slightly more formal and common in academic, technical, or written contexts—especially in textbooks, research papers, and official reports. It’s often interchangeable with 平均值 (píng jūn zhí), though 均值 tends to be more concise and preferred in formulas or headings. Learners should note that it’s always a noun and never used as a verb or adjective.