The atmosphere above a given point, especially as visible from the ground during the day.
The part of the sky which can be seen from a specific place or at a specific time; its condition, climate etc.
Heaven.
(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.
A vibrant light blue colour, like that of the sky on a fine day.
To hit, kick or throw (a ball) extremely high.
To clear (a hurdle, high jump bar, etc.) by a large margin.
To hang (a picture on exhibition) near the top of a wall, where it cannot be well seen.
To drink something from a container without one's lips touching the container.