noun
[ sing. ] (also the ˌupper ˈclasses [ pl. ]) the groups of people that are considered to have the highest social status and that have more money and/or power than other people in society :
a member of the upper class / upper classes
► ˌupper ˈclass adjective :
Her family is very upper class.
an upper-class accent
—compare lower class , middle class , working class