The word 确切 is formed through the combination of two independent characters, each contributing its core meaning to create a new, unified concept. The first character, 确 (què), carries the sense of being definite, firm, or true. The second character, 切 (qiè), conveys the idea of being close, fitting, or in precise alignment. When merged, their meanings semantically blend and reinforce one another, where the firmness of 确 and the close-fitting precision of 切 together produce the compound's overall meaning of "exact", "precise", or "definite", effectively capturing a notion of accuracy that is both certain and closely matched to reality.