Eligible Receiver – a player allowed to catch a “Forward Pass”; usually “Offensive Linemen” aren’t legally permitted to catch a pass, but a tackle can become eligible by informing the referee before the play 

Encroachment – an illegal procedure in which a defender makes contact with an opposing player, results in a five yard penalty 

End – a player – either offensive or defensive – who takes position at the line of scrimmage on either end of the linemen

End Line – the borderline on the outer edge of the “End Zone”

End Zone – a 10-yard-wide section at either end of the field; carrying the ball into the end zone results in a “Touch Down”    

Excessive Time Outs – calling a “Time Out” when the allotted three have already been taken; a 5 yard penalty

Extra Point – the chance to kick the ball through the uprights after scoring a “Touch Down” for an additional point