Meaning of “middle age” in the English Dictionary

"middle age" in British English

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(Definition of “middle age” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"middle age" in American English

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middle agenoun [ U ]

us /ˈmɪd·əl ˈeɪdʒ/ also midlife

the period of your adult life from about 40 to 65 years old when you are no longer considered young but are not yet old


a middle-aged couple

(Definition of “middle age” from the Cambridge Academic Content Dictionary © Cambridge University Press)