A judgeship: a judge's jurisdiction, power, or office.

The judiciary: a collective term for the court system or the body of judges, justices etc.

One who administers justice, particularly:

Of or relating to justification or redemption before God.

Of or relating to the doctrine (or heresy) that adherence to religious law redeems mankind before God.

Judicial: of or relating to the administration of justice, judges, or judgeships.