The word 借用 is formed by combining two independent characters, each with its own meaning, into a new, unified concept. The first character, 借 (jiè), carries the core idea of "borrowing" or "lending", implying the temporary acquisition of something from another source. The second character, 用 (yòng), means "to use" or "to employ". When placed together, they create a sequential and purposeful compound: the action of 借 (borrowing) is performed explicitly for the purpose of 用 (using). Thus, the formation conceptually merges these two actions into a single integrated idea of "to borrow for use" or "to make use of something by borrowing it".