2–4–5 defense A type of nickel formation with two linemen (two defensive ends, DEs, or one DE and one defensive tackle, DT), four linebackers … See more

back Any position not typically aligned on the line of scrimmage (exception: defensive linemen are off the line in Canadian rules, but are not backs). Offensively: running … See more

dead ball Main article: Dead ball (American football) A ball which is no longer in play dead-ball foul A penalty committed by either team before or after the play. If it is after, … See more

face mask Main article: Face mask (gridiron football) The protective grill that forms part of the football helmet face mask, grasping A foul in which a player grabs the face mask … See more

A-11 offense Main article: A-11 offense An offensive philosophy designed to appear as if all 11 players are eligible receivers. The offense exploits a loophole in the American football … See more

cadence As per The Athletic, "the specific color-number-color-number pattern required to start every football play and give instruction to the offensive line." carry or carries Main … See more

edge rusher Main article: Edge rusher A defensive player whose most common role is attacking the quarterback from the edge of the offensive line. On teams that use a four-man defensive … See more