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English definition of “teenager”

teenager

noun [C]     /ˈtiːnˌeɪ.dʒər/ US  /-dʒɚ/ (informal teen)
A2 a young person between 13 and 19 years old: The magazine is aimed at teenagers and young adults.Young people teenage     /-eɪdʒ/ adjective [before noun] (also teenaged,   /-eɪdʒd/   , informal teen) B1 a teenage nephewDescribing people who are young
(Definition of teenager noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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