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English definition of “age”

age

noun
 
 
/eɪdʒ/
HOW OLD [C, U] A1 the number of years that someone has lived, or that something has existed: The show appeals to people of all ages. She left India at the age of 12. Children under 10 years of age must be accompanied by an adult. She's about your age (= the same age as you).Describing age and birthdays
HISTORY [C] B1 a period of history: the Ice Age We're living in the age of electronic communication.Periods of time - general words
OLD [U] the quality of being old: Some wines improve with age.Old or old-fashionedThe elderly
under age too young to do something legally → See also the Middle Ages, old ageDescribing age and birthdays
(Definition of age noun from the Cambridge Learners Dictionary © Cambridge University Press)
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