万ばん頃けいばんけいMeanings1nounvast expanseLiterary noun describing a boundless stretch of land, water, or sky. Often used in poetic or descriptive contexts.万ばん頃けいの海原うなばらを眺ながめる。Gaze out over the vast expanse of the ocean.万ばん頃けいの青あお空ぞらが広ひろがっていた。A vast expanse of blue sky stretched out.