The word 便利 is formed by combining two independent characters, each contributing a core meaning that merges into a single concept. The first character, 便, carries the sense of something being handy, suitable, or easy. The second character, 利, conveys the idea of sharpness, advantage, or benefit. When placed together, their individual notions fuse to create the composite idea of "convenience" or "handiness", essentially, a state or quality that provides ease and practical advantage.