A skill is exactly what it sounds like. A skill is described as such:

"Skills are usually acquired or learned, as opposed to abilities, which are often thought of as innate."

Thus, if you are skilled, you know how to do something better than someone else. Like forging a weapon, or building a trap.

KNOWLEDGE SKILLS:

There are three ways for a ninja to fight, and …

These are the ranks as according to Jōkaiden.

Academy Student: Not really a rank. When you sign up on the forum and haven't been accepted yet, this is your rank. It goes up to Genin after you get accepted. It's there for novelty's sake.

Genin/D-class Nukenin: The basic level ninja. Typically, your in a team with two other Genin led by a Jōnin or Chūnin. You get a headband. …

The basic rules for members are as follows:

1. Respect others. Insults won't be taken lightly.
   
2. Respect the choices of our staff, by either the Moderator's or the Administrators. PM us if you have any problems. If you don't go about discussing things with us in an orderly manner, you will regret it.
   
3. No bugging us to do something …