Definitionen
1.NounAn area with no life.
2.NounAn area of the ocean where oxygen levels are too low to support life, especially as a result of pollution.
3.NounA region where mobile phones do not operate because there is no base station or repeater nearby.
4.NounThe part of the field where a player is on their opponent's side of the field but kicking a field goal would probably be unsuccessful and punting the ball would not dramatically change field position.
5.NounAn area near a fortification that is relatively sheltered from defending fire because direct fire from other parts of the walls cannot be directed around a curved wall.
6.NounA region within the player's viewpoint that is less sensitive to small movements, aiding accurate firing of weapons etc.