碧へき雲うん

noun

bluish cloud; azure cloud

Literary or poetic term for a cloud tinged with blue or green, often evoking a serene or lofty image.

• 碧へき雲うんがたなびく空そらを見み上あげた。

  I looked up at the sky where bluish clouds were trailing.

noun

azure sky; blue sky

By extension, refers to the clear blue sky itself, often in classical or refined contexts.

• 碧へき雲うんの下もと、湖こ面めんが輝かがやいていた。

  Under the azure sky, the lake surface was shining.