Words to KNow
Advantage Law - Allows play to proceed after an infringement in the case of the non-offending team receiving an advantage.  The Sir will yell "ADVANTAGE"--all you have to do is keep playing. 

Backs - Players who spread out and attempt to run the ball delivered from a scrum or lineout.

Drop Kick - A kick made after the ball has reached or bounced off the ground. Worth three points if it clears the goalposts; also used to restart play after a score or certain other occasions.  

Forward Pass - A violation that usually results in a scrum to the non-offending side.  

Forwards - Players who pack in a scrum or throw and jump in a lineout.   

Knock On - The accidental hitting of the ball from the hands or arms toward the dead ball line. Results in the same scenario as a forward pass -- a scrum to the non- offending team.  

Lineout - Restarts play after the ball goes out over the touchline. The team that didn’t touch the ball last has the throw-in.  

Mark - The place where the referee signals play will be restarted. For example, the referee marks where the scrum will take place, or where the penalty has occurred.  

Offside - Players in front of a member of their own team who was last in possession of the ball, or in front of established lines at a scrum. Lineouts of loose play are said to be offsides. In some instances, one can retreat to an onside position without penalty; other times the infraction is automatically a violation.  

Pack - Forward unit of a team, engages in scrum and lineouts.  

Penalty - Awarded after a serious infringement of the laws. Offenders are required to retire 10-meters while the opposition is given possession to restart play unopposed. Many times the non-offending team will attempt a kick at goal, worth three points.  

Put In - Rolling the ball down the center of the scrum tunnel.  

Ruck - A ball-winning activity following a tackle and release; a ruck is formed if a player from both teams is in physical contact over the ball.  

Scrum - A way to restart play where a bound group of players form a tunnel with the opposition.

Throw In - Throwing the ball down the middle of a lineout.  

Touchline - The side boundary of the field (sideline).  

Try - Forcing the ball onto the ground with downward pressure over the opposition’s goal line.  Note: in order to score, you MUST touch the ball down.

Position #1

Supports the hooker in the scrum downs, and act as general workhorses on the field. The tight head prop is on the right side.  The loose head prop is on the left side.

Position #2

The hooker is in the front and center of the scrum, and "hooks" the ball back through his team's side of the scrum with his foot. Around the field the hooker acts as a workhorse.

Position #4, #5

Serves as the main push in the scrum downs, and act as general workhorses on the field. Also known as the second row.

Position #6 & #7

The wing forwards are generally the most mobile forwards and since they are positioned on the outside of the scrums are often the first players to the breakdowns.

Position #8

Positioned in the back of the scrum, the Eight Man acts as the rudder in the scrum by keeping the scrum from wheeling. As with all of the scrum the eight man is a work horse who fights for possession of the ball.

Position #9

The scrumhalf handles the ball more than any other player on the field. The scrumhalf moves the ball out from scrums, rucks, and mauls.

Position #10

Generally the first player to handle the ball from the scrumhalf. The Flyhalf is often a sure-handed experienced player.

Position #12

The inside center is usually a powerful runner who will often "crash" his run into the defense.

Outside Center

Position #13

The outside center is also often a powerful runner who will either "crash" the ball, or look for a gap to shoot through.

Wing

Position #11, #14

Often the quickest and most fleet footed player, the wing doesn't get the ball as often as some of the other players, but when he does it can be exciting.

Full Back

Position #15

The Fullback serves as a safety valve to cover the ball on deep kicks and breakaway runs. Generally the fullback represents the last line of defense and prevents many scores.