also upper-class
( upper classes)
The upper class or the upper classes are the group of people in a society who own the most property and have the highest social status, and who may not need to work for money.
...goods specifically designed to appeal to the tastes of the upper class...
N-COUNT-COLL : usu the N
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Upper class is also an adjective.
All of them came from wealthy, upper class families.
ADJ : usu ADJ n