The word "路口" is formed through a direct and intuitive pictorial combination of its two component characters. The first character, "路", means "road" or "path". The second, "口", literally means "mouth" but is used here in its extended, metaphorical sense of an "opening" or an "entry/exit point". When combined, the concept visually represents the opening or junction where one road meets another, forming a crossroad or intersection. It is a logical compound where the meaning of the whole is immediately derived from the assembled idea of a "road opening".