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College Football Glossary | I-L

A-D | E-H | I-L | M-P | Q-T | U-Z

I-Formation
An offensive formation that looks like an I because the two running backs line up directly behind the quarterback.
Illegal Formation
An offensive formation in which not enough players are on the line of scrimmage.
Illegal Motion
An illegal movement where two offensive players are in motion at the same time when the ball is snapped.
Illegal Procedure
A penalty that includes movement by an offensive player before the snap.
Illegal Shift
A foul by the offense where a player fails to reset for at least one second after two players shift position at the same time.
In Bounds
The region of the field that is considered in play.
Incomplete Pass
A forward pass that touches the ground before being caught or that is caught while the player is out of bounds.
Incompletion
A forward pass that hits the ground before the receiver has a chance to catch and control it.
Intentional Grounding
The quarterback, while he is still in the area between the tackles, purposely throwing the ball out of bounds or into the ground to avoid taking a sack.
Interception
A pass that is caught by a defensive player, giving his team possession of the ball.
Interference
1. Illegally hampering a player's opportunity to catch a pass.
2. Blocking for another player carrying the football.
Key
A specific player, formation, or a shift in formation that serves as a clue as to the play the opposition is going to run.
Kick
This term is used to refer to a placekicker's attempt to kick a field goal, extra point, or kickoff. Also refers to the act of kicking by either the placekicker of punter.
Kicking an Opponent
An illegal act in which a player kneels on or kicks a member of another team.
Kicking Game
The aspect of the game that involves kickoffs, field goals, extra points, punts, and free kicks.
Kickoff
A free kick that puts the ball into play at the start of the first and third periods and after every touchdown and field goal.
Kick Returner
A special teams player who specializes in returning kickoffs.
Lateral
A sideways or backwards pass thrown from one player to another.
Linebacker
A defensive player who lines up behind the defensive linemen and in front of the defensive backfield. The linebackers are a team's second line of defense.
Line Judge
The official who lines up on the opposite side of the field from the head linesman. His duties include:
Assist the head linesman on in making illegal motion, illegal shifts, offside and encroachment calls
Assist the umpire with illegal use of the hands and holding calls
Assist the referee on false start calls
Make sure the quarterback does not cross the line of scrimmage before throwing the ball
Watch for offensive lineman going downfield too early on punts
Supervise the timing of the game
Supervise substitutions by the team on his side of the field
Lineman
An offensive or defensive player who starts each play lined up on the line of scrimmage.
Linemen
The players that line up on the line of scrimmage.
Line of Scrimmage
An imaginary line stretching the width of the field that separates the two teams prior to the snap of the ball.
Line to Gain
Term that indicates the distance needed for first-down yardage.
Live Ball
A ball that is in play while a play is in progress.
Long Snapper
The center who specializes in snapping the ball for punts and field goal attempts.
Loose Ball
A ball that is not in possession of either team.