The word 侦察 is formed by combining two characters, each contributing a core meaning that together create a new, unified concept. The first character, 侦, carries the sense of detecting, probing, or spying. The second character, 察, means to examine, observe, or scrutinize closely. When paired, they logically sequence and intensify the action: first, the act of probing or detecting (侦), followed by a detailed observation or examination (察) of what was found. This results in the comprehensive meaning of "to reconnoiter" or "to scout", representing the full process of military or investigative reconnaissance.