The word 青蛙 is formed by combining two characters: 青, meaning "green" or "bluish-green", and 蛙, meaning "frog". It is a straightforward compound where the first character describes a primary, visible attribute (its color), and the second character names the creature itself. This creates a direct, image-based name, essentially "green frog", where the descriptive element modifies and specifies the general category, resulting in an intuitive and visually evocative term for the animal.