sky
/skaɪ/
The atmosphere above a given point, especially as visible from the ground during the day.
That year, a meteor fell from the sky.
The part of the sky which can be seen from a specific place or at a specific time; its condition, climate etc.
I lay back under a warm Texas sky.
Heaven.
This mortal has incurred the wrath of the skies.
(theoretical physics) The set of all lightlike lines (or directions) passing through a given point in space-time.
In an art gallery, the upper rows of pictures that cannot easily be seen.
A cloud.