Lateral – a “Pass” to another player which is either backwards or sideways, and can be thrown from beyond the “Line of Scrimmage” 

Linebacker – the defenders behind the defensive linemen and in front of the “Defensive Backs”

Line Judge – the official across the field from the “Head Linesmen”; primarily in charge of assisting the head linesman and making sure the quarterback doesn’t cross the “Line of Scrimmage” before throwing a forward pass

Lineman – a player – offensive or defensive – who lines up on the “Line of Scrimmage” at the beginning of the play

Line of Scrimmage – the invisible line that separates the defense and the offense; defined by the position of the ball with the length of the ball as a “Neutral
Zone” which no player may cross before the ball is snapped

Line to Gain – an imaginary line marking the point the offense needs to reach for another first down, also known as the “Necessary Line”

Live Ball – a ball that’s in play; opposed to a “Dead Ball”

Long Snapper – a “Center” who hikes the ball on punts and kicks

Loose Ball – not in either team’s possession