An informal "do-over" shot, replayed without penalty, common in casual rounds, not allowed under the actual rules.
The number of strokes a skilled golfer is expected to need to complete a hole, including two putts.
A score of one stroke under par on a hole.
A score of two strokes under par on a hole.
A score of three strokes under par, one of the rarest feats in golf.
A score of one stroke over par on a hole.
A score of two strokes over par on a hole.