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.
Since the status of being an aristocrat was inherited, the aristocracy or nobility usually stayed closed as a group. Sometimes, though, people did rise up in the ranks and become new aristocrats. But these families of new nobility were considered to be at a lower level than the others.