As nouns the difference between execution and shot
is that
execution is execution while
shot is the result of launching a projectile or bullet or
shot can be a charge to be paid, a scot or shout.
As an adjective shot is
(colloquial) worn out or broken.
As a verb shot is
(
shoot) or
shot can be to load (a gun) with shot.
As an interjection shot is
(colloquial|south africa) thank you.