In basketball, the defensive position is the stance you are in while guarding an opponent (defense) in basketball.
The "keystone" in baseball usually refers to second base. It's called such because it is important in scoring (since a runner on second is in "scoring position") and because it's a key defensive position.
A defensive end is the name of a defensive position in American and Canadian football, situated at each end of the defensive line.
Switching from a linebacker to a defensive tackle require two different techniques. It is important to learn and master the technique of the position you would like to play.
In American football, a "rover" is a defensive player who "roves" from linebacker to defensive back, or roves from cornerback to safety in the defensive bakefield. The rover has no fixed position. The abbreviation ROV stands for ROVER.
Line Backer is an American football position. It is a defensive position.
d.s defensive specalist also known as libero or middle back
A Nickleback is a defensive position in football who is not in on all plays. It is a cornerback position who is considered the fifth defensive back on the line. This position only enters the game when a nickel defense is required.
A Position in soccer that is both offensive and defensive is the position central mifield
That is the baseball or softball fielding position between second and third base.
a Defensive lineman or defensive linebacker
FS stands for "free safety," a "roaming" position in the defensive backfield.
Once the DH moves to a defensive position the DH is no longer allowed in the lineup. In that case, the pitcher would assume the position in the batting order of the defensive player replaced by the DH.
It depends if you are talking about the position safety, or the defensive scoring play known as a safety. For the position, defensive back would work For the play, I do not know of another name.