( middle classes)
Frequency: The word is one of the 3000 most common words in English.
The middle class or middle classes are the people in a society who are not working class or upper class. Business people, managers, doctors, lawyers, and teachers are usually regarded as middle class.
...the expansion of the middle class in the late 19th century...
The President may have secured some support from the middle classes.
N-COUNT-COLL : usu the N
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Middle class is also an adjective.
He is rapidly losing the support of blue-collar voters and of middle-class conservatives...
ADJ