(b) The game consists in each side playing a ball from a teeing-ground into a hole by successive strokes, and the hole is won by the side which holes its ball in fewer strokes than the opposite side, except as otherwise provided for in the Rules. If the sides hole out in the same number of strokes, the hole is halved.
(c) The "teeing-ground" is the starting-point for a hole, and shall be indicated by two marks placed in a line as nearly as possible at right angles to the course.
The hole shall be 4¼ inches in diameter, and at least 4 inches deep.
(d) The "putting-green" is all ground within 20 yards of the hole, except hazards.
(e) A "hazard" is any bunker, water (except casual water), sand, path, road, railway, whin, bush, rushes, rabbit scrape, fence, or ditch. Sand blown on to the grass, or sprinkled on the course for its preservation, bare patches, sheep tracks, snow, and ice are not hazards. Permanent grass within a hazard is not part of the hazard.
(f) "Through the green" is any part of the course except hazards and the putting-green which is being played to.
(g) "Out of bounds" is any place outside the defined or recognised boundaries of the course.
(h) "Casual water" is any temporary accumulation of water (whether caused by rainfall or otherwise) which is not one of the ordinary and recognised hazards of the course.
(i) A ball is "in play" as soon as the player has made a stroke at the teeing-ground in each hole, and remains in play until holed out, except when lifted in accordance with the Rules.
(j) A ball has "moved" only if it leave its original position in the least degree, and stop in another; but if it merely oscillate, without finally leaving its original position, it has not "moved."