1 3. Hi-lift track, which is used when the ceiling is unusually high, but the door must still retract to a horizontal position. 2  You should be able to raise your door in 1' increments and the door should stay in place where you stop it. 3  When the door comes down, it lowers in a controlled manner and doesn't slam.
aristocracy. 1  a class of persons holding exceptional rank and privileges, especially the hereditary nobility. 2  a government or state ruled by an aristocracy, elite, or privileged upper class. 3  government by those considered to be the best or most able people in the state.
Royalty is the prime example of an aristocracy, only members of the royal clan can lead government. Some countries the aristocracy could be determined by graduation from exclusive schools, like Harvard, or similar means that is designed to support only the wealthy.