Upper class :  (noun)

1: the class occupying the highest position in the social hierarchy [syn: upper crust]

FFVs, ancienne noblesse, aristocracy, baronage, baronetage, barons, blue blood, chivalry, cream, elect, elite, establishment, flower, gentility, gentry, haut monde, high life, high society, knightage, lords of creation, nobility, noblesse, noblesse de robe, old nobility, overlapping, peerage, power elite, power structure, quality, royalty, ruling circles, ruling class, society, the Four Hundred, the best, the best people, the brass, the classes, top people, upper classes, upper crust, upper ten, upper ten thousand, uppercut,