Dimeback: Information from Answers.com

The "dime" defense (4 cornerbacks), lined up against 4 wide receivers on offense

In American football, a dimeback is a cornerback who serves as the sixth defensive back (fourth cornerback) on defense. The third cornerback on defense is known as a nickelback. The dimeback position is essentially relegated to backup cornerbacks who do not play starting cornerback positions. Dimebacks are usually fast players because they must be able to keep up on passing plays with 3+ wide receivers.

Dimebacks are brought into the game when the defense uses a "Dime" formation, which utilizes six defensive backs rather than four or five. Usually, a dimeback replaces a linebacker in order to gain better pass defense.

Positions in American football and Canadian football
Offense		Defense		Special teams
Linemen	Guard, Tackle, Center	Linemen	Tackle, End, Nose tackle	Kicking players	Placekicker, Punter, Kickoff specialist
Quarterback		Linebackers		Snapping	Long snapper, Holder
Backs	Halfback, Fullback, H-back	Backs	Cornerback, Safety	Returning	Punt returner, Kick returner
Receivers	Wide receiver, Tight end, Slotback	Backs	Nickelback, Dimeback	Tackling	Gunner
Formations - Nomenclature

v • d • e Gridiron football concepts

Codes	American • Canadian (US-Canadian comparison) • Arena • Indoor • 9-man • 8-man • 6-man • Flag • Touch • Street/Backyard

Levels of play	High school • College • Sprint • Professional

Field	End zone • Goal line • Line of scrimmage • Neutral zone • Football (ball)

Positions (offense)	Linemen • Quarterback • Running back • Halfback • Fullback • H-back • Wide receiver • Tight end • Slotback • Guard • Offensive tackle • Center • Eligible receiver

Positions (defense)	Linemen • Linebacker • Defensive tackle • Defensive end • Nose tackle • Defensive back • Cornerback • Safety (American football) • Nickelback • Dimeback

Positions (special teams)	Placekicker • Punter • Kickoff specialist • Long snapper • Holder • Punt returner • Kickoff returner • Gunner

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 • Statue of Liberty • Sweep

Play types (defense)	Tackle • Blitz • Rush • Sack • Shooting the gap • Stunt • Zone blitz

Play types (special teams)	Kickoff • Kickoff return • Punt • Punt return • Drop kick • Fair catch • Fair catch kick • Onside kick • Squib kick • Try

Scoring	Touchdown • Extra point • Two-point conversion • Field goal • Safety • Single (rouge)

Penalties	False start • Offside • Holding • Pass interference • Delay of game • Face mask • Block in the back • Clipping • Chop block • Intentional grounding • Illegal forward kick

Turnovers	Fumble • Interception • Muffed punt • Turnover on downs

Downs	First down • Three-and-out • Fourth down conversion

Play clock	Timeout • Two-minute warning • Running out the clock •

Statistics	Passer rating • Reception • Return yards • Total offense • Yards from scrimmage

Celebrations	Touchdown celebration • Gatorade shower

Miscellaneous	Snap • Dead ball • Touchback • Instant replay • Glossary of American football • Glossary of Canadian football

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