also: うんしょう
noun
Literary or poetic term for the sky above the clouds, often implying a heavenly or imperial realm. Can also refer metaphorically to the imperial court.
雲上の世界を想像する。
Imagine a world above the clouds.
その山は雲上にそびえている。
The mountain towers above the clouds.
Obsolete reading; included for historical reference.
天上 is a more common word for 'the heavens' or 'above the sky', while 雲上 is more specifically 'above the clouds' and carries a literary or classical nuance.
Compound of 雲 (cloud) and 上 (above). The reading うんじょう is the standard on'yomi combination; うんしょう is an older, now obsolete reading.