Terminologies:
Place Kick: A kick at the ball while it is on the ground, in any position in which the kicker may choose to place it.
Free Kick: The privilege of kicking at the ball, without obstruction in any manner the kicker may think fit.
Fair Catch: The catching of the ball after it has touched the person of an adversary, and before it has touched the ground or one of the side catching it. But a fair catch cannot be made if the ball is kicked from behind the goal line.
Hacking: Kicking an adversary intentionally.
Tripping: Throwing an adversary by the use of the leg.
Knocking on: When a player strikes or propels the ball with his hands or arms.
Holding: The obstruction of a player by the hand or any part of the arm below the elbow.
Touch: That part of the field on either side of the ground, which is beyond the line of flags.