This is the 4694th most frequent Polish word.
nastolatek
Teenager.
Here, 'nastolatek' is used to refer to a young person who is in their teenage years, highlighting their daily routine.
Nastolatek uczy się codziennie w szkole.
The teenager studies at school every day.
In this sentence, 'nastolatków' is the plural genitive form, indicating a group of young individuals in their teens.
Grupa nastolatków bawiła się na placu zabaw.
A group of teenagers were playing in the playground.
The term 'nastolatek' directly identifies a single teenage person in the context of checking task completeness.