The word 薄饼 is formed by directly combining two meaningful characters: 薄 (báo), meaning "thin", and 饼 (bǐng), meaning "a flatbread" or "pancake". It is a descriptive compound where the first character specifies a key attribute, thinness, of the object named by the second character, thus creating a clear and intuitive concept for a specific kind of food: a thin flatbread or crepe.