Definition of the lower middle class noun from the Oxford Advanced Learner's Dictionary

 

the lower middle class

 nounnoun
noun
BrE
 
; NAmE
 
[singular + singular or plural verb](also the lower middle classes [plural])noun
 
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the class of people in British society, especially in the past, between working class and middle class, such as office workers or shopkeepers, but not professional people.