Meaning: empty, sky
Readings: そら、あく、あける、から、クウ
Components: 穴 (hole), 工 (construction)
My hack: A hole at a construction site is the very definition of empty.

Meaning: empty, sky
Readings: そら、あく、あける、から、クウ
Components: 穴 (hole), 工 (construction)
My hack: A hole at a construction site is the very definition of empty.

The construction worker noticed a hole in the sky.