The word 到达 is formed through the complementary combination of two characters, each contributing a core aspect of the overall concept. The first character, 到, primarily means "to arrive" or "to reach", focusing on the action of coming to a point. The second character, 达, carries the meaning of "to attain" or "to achieve", emphasizing the successful completion of that movement to a goal. Together, they merge into a single concept where the action of arriving (到) is seamlessly integrated with the resultant state of having attained the destination (达), creating a holistic sense of "to arrive at" or "to reach".