High School Football
Tackle-eligibles are effectively illegal at the high school level; the rules of that level do not even allow declaration. The scrimmage kick formation was once exempt from all numbering requirements, but after the A-11 offense employed the formation as a base offense, the rules were modified in February 2009. No player wearing between 50 or 79 is eligible to receive a pass, and all ineligible receivers (except a long snapper) must wear between 50 and 79 in all cases.
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Gridiron football concepts
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| Codes |
- American
- Canadian (US–Canadian comparison)
- Arena
- Indoor
- 9-man
- 8-man
- 6-man
- Flag
- Touch
- Street/Backyard
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| Levels of play |
- High school
- College
- Sprint
- Women's
- Professional
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| Field |
- End zone
- Goal line
- Red zone
- Line of scrimmage
- Neutral zone
- Field goal range
- Out of bounds
- Sidelines
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| Equipment |
- Football (ball)
- Helmet
- Shoulder pads
- Uniform number
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| Positions |
| Offense |
- Quarterback
- Running backs (Halfback, Fullback, H-back)
- Receivers (Wide receiver, Tight end, Slotback)
- Linemen (Center, Guard, Tackle)
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| Defense |
- Linemen (Defensive tackle, Defensive end, Nose tackle)
- Linebacker
- Defensive back (Cornerback, Safety, Nickelback, Dimeback, Halfback)
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| Special teams |
- Placekicker
- Punter
- Kickoff specialist
- Long snapper
- Holder
- Punt returner
- Kickoff returner
- Return specialist
- Gunner
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| Other |
- Utility player
- Triple-threat man
- Skill position
- Game manager
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| Play types |
| Offense |
- Rush
- Pass
- Incomplete pass
- Lateral
- Bootleg play
- Draw play
- End-around
- Flea flicker
- Flexbone formation
- Fourth down conversion
- Hail Mary pass
- Halfback option play
- Hook and lateral
- Kneel
- Motion
- Hurry-up offense
- Option run
- Option offense
- Play-action pass
- Quarterback keeper
- Quarterback sneak
- Quick kick
- Reverse
- Scramble
- Screen pass
- Spike
- Statue of Liberty
- Sweep
- Tackle-eligible
- Trick play
- Wildcat formation
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| Defense |
- Tackle
- Blitz
- Rush
- Sack
- Shooting the gap
- Stunt
- Zone blitz
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| Special teams |
- Kickoff
- Kickoff return
- Punt
- Punt return
- Drop kick
- Fair catch
- Fair catch kick
- Icing the kicker
- Onside kick
- Squib kick
- Conversion
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| Scoring |
- Touchdown
- Point after touchdown
- Two-point conversion
- Field goal
- Safety
- Single (rouge)
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| Penalties |
- Blocking below the waist
- Block in the back
- Chop block
- Clipping
- Delay of game
- Encroachment
- Equipment violations
- Face mask
- False start
- Helmet-to-helmet collision
- Horse-collar tackle
- Illegal contact
- Illegal formation
- Illegal forward kick
- Illegal forward pass
- Illegal hands to the face
- Illegal motion
- Illegal participation
- Illegal shift
- Illegal substitution
- Illegal touching
- Illegal touching of a free kick
- Illegal use of hands
- Ineligible receiver downfield
- Intentional grounding
- Holding
- Leaping
- Neutral zone infraction
- Offside
- Palpably unfair act
- Pass interference
- Personal foul
- Roughing the kicker
- Roughing the passer
- Roughing the snapper
- Sideline infraction
- Spearing
- Time count
- Tripping
- Unsportsmanlike conduct
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| Turnovers |
- Fumble
- Interception
- Muffed punt
- Turnover on downs
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| Downs |
- First down
- Three-and-out
- Fourth down conversion
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| Play clock |
- Timeout
- One-minute warning
- Two-minute warning
- Three-minute warning
- Running out the clock
- Untimed play
- Garbage time
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| Statistics |
- Carry
- Rushing yards
- Passing yards
- Passer rating
- Reception
- Receiving yards
- Return yards
- Total offense
- Yards from scrimmage
- All-purpose yardage
- Touchdown pass
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| Celebrations |
- Touchdown celebration
- Gatorade shower
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| Officiating |
- Officials
- Penalty flag
- Chain crew
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| Miscellaneous |
- Snap
- Dead ball
- Touchback
- Instant replay
- Coffin corner
- Resting the starters
- Glossary of American football
- Glossary of Canadian football
- Rules
- Rules in American football
- California playoff
- Concussions in American football
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