Game Ball – a ball played with in the game, awarded to a player on the winning team

Gap – the openings between players lined up on the “Line of Scrimmage”

Goal Line – the line separating the “End Zone” from the playing field, must be crossed with the ball in order to score a “Touchdown”

Goal-Line Stand – The goal line is the chalked or painted line that separates the end zones on either side from the playing field. This line must be crossed with the ball in order to score a touchdown. There is an imaginary vertical plane that this line goes through; if the ball reaches this plane while an offensive player has it in his possession, that player’s team scores a touchdown. Touchdowns are worth six points. Should the player be downed while in possession of the ball, if he is located at/behind the goal, it is called as a safety, which gives two points to the defensive team. During play, whenever a loose ball travels past the goal line and is subsequently recovered by the team that is working towards that goal, it is a touchdown. If, however, it is called a touchback if it is recovered and downed by the team that is striving towards the opposite goal line.

Goalpost – A goalpost is the post situated at the far end of each end zone on a football field. They may be alternatively referred to as uprights. The entire goalpost consists of a post, a crossbar and two uprights. The two uprights are connected by a crossbar that is 10 feet (3.05 m) from the ground, and the uprights must extend a minimum of thirty feet above it. The goalposts measure 18 feet, 6 inches wide. The post that holds the uprights themselves is 10 feet tall and is located 80 feet from the sidelines. The NFL also includes a net behind the goal, which prevents the ball from leaving the playing field. In football, a field goal is one method of scoring points. A field goal is scored whenever the ball is either place kicked or drop kicked, and goes completely over the crossbar. Field goals in NFL football are worth three points.

Gridiron –Gridiron is a slang term for the football field, referring to the measurement lines on the field that form a hatched mark pattern. In the NFL, the gridiron/field measures 360 by 160 feet. The boundary lines that comprise the longer side of the field are sidelines, and the shorter boundary lines are end lines. Balls that are hit or carried onto or over these lines are out of bounds. Each (short) end of the field has a goal line and a goalpost. These goals are situated 100 yards apart from each other in the end zone. It is the yard lines that give an American football field its distinctive gridiron look. These yard lines go across the field every five yards, and every ten yards, they are numbered from the goal lines to the 50 yard line. There are also two rows of short lines that are referred to as either inbound lines or has marks, which run at 1 yard intervals. Plays must begin on or between these hash marks.

Guard – Guards are the two offensive linesmen who line up on either side of the center and to inside of the tackles. The guards are referred to as the right guard, and left guard, according to their position in regard to the offensive line. Both left and right guard are ineligible receivers, and as such are unable to go for a forward pass, except to recover it in case of a fumble. Guards are eligible to catch a pass after it has already been touched by a defensive player. The guards are responsible for protecting the quarterback from the defensive line during plays. Guards also help to make openings to get their running backs through the defense. The guards accomplish these tasks through blocking and pulling- which means to run out ahead of a running back to be there early enough to block him. The majority of guards in the game today are very large players, with many weighing in at over three hundred pounds.

Gunner – A gunner is a defender on special teams, who is known for rushing downfield to tackle the returner. This player may alternatively be referred to as a shooter. During kickoffs and punts, a gunner specializes in getting down the sideline quickly in order to be available to tackle the kick or punt returner. A gunner must be able to break away from blockers, and for this reason must have both speed and agility. Gunners may also play positions such as backs or wide receivers when they’re not on special teams. During a punt, the two players who are lined up like wide receivers are the gunners. Because they are eligible receivers they can begin to run downfield as soon as the ball is snapped. It is the gunner’s responsibility to beat the other players downfield and tackle the person who catches the ball.