The word 撤退 is formed by combining two characters, each contributing a distinct action to create a unified concept. The first character, 撤 (chè), carries the core meaning of "to remove" or "to withdraw", implying an active dismantling or pulling back from a position. The second character, 退 (tuì), means "to retreat" or "to move backward", providing the directional movement. When joined, they sequentially depict a deliberate process: first, the act of disengaging or pulling out (撤), followed by the physical movement away from a point (退), together forming the complete idea of a coordinated "withdrawal" or "retreat".