The word 引爆 is formed by combining two characters, each contributing a key action to create a single, sequential concept. The first character, 引 (yǐn), carries the core meaning of "to lead", "to guide", or "to trigger", setting an initial cause into motion. It is directly followed by the second character, 爆 (bào), which means "to explode" or "to burst". The formation is logical and directional: the action of 引 (triggering) leads directly and inevitably to the result of 爆 (exploding), picturing the complete process from initiation to detonation in a concise, cause-and-effect compound.