teenager
/ˈtinˌeɪdʒɚ/ noun A2- A person between thirteen and nineteen years old (inclusive). · Most teenagers will undergo lots of changes before reaching adulthood.· Marco's main target market are late teenagers.
Plural teenagers
From the library
Parents often complain that teenagers stay up too late and are almost impossible to wake in the morning.
Studies have shown that during the teenage years, melatonin is released later at night, so many teenagers simply don't feel tired until eleven or even later.
However, most teenagers still need eight to ten hours of sleep a night, which is hard to get when school starts at 7:30.
Meanwhile, experts recommend that teenagers keep phones out of the bedroom and go to bed at the same time every night.
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