teen
The German word for teen is 'Teenager', which is a direct loanword from English. It is used to refer to young people between the ages of 13 and 19, inclusive. The term is gender-neutral and can be used to refer to both male and female adolescents.
He is a teenager.
This phrase is a simple declaration of someone's age group, particularly utilizing the term 'teenager' to specify that the individual is in their teenage years, typically between 13 and 19.
Many teenagers like to listen to music.
This sentence applies the general term 'teenager' to a common behavior -- listening to music. It implies that being a 'teenager' is often associated with certain interests or hobbies, like music.
The parents talk with their teenagers.
This phrase employs the plural form of 'teenager' (Teenagern) to illustrate a scenario where parents are interacting with their teenage children. It suggests that the term 'teenager' can be adjusted according to the context it's used in.