Definition of shaves:
(v) :
(transitive) To make (the head, skin etc.) bald or (the hair) shorter by using a tool such as a razor or electric clippers to cut the hair close to the skin.
(v) :
(intransitive) To remove hair from one's face by this means.
(v) :
(transitive) To cut anything in this fashion.
(v) :
To skim along or near the surface of; to pass close to, or touch lightly, in passing.
(v) :
To reduce in size, weight, time taken etc., usually by a small amount.
(n) :
An instance of shaving.