This is the 569th most frequent Hungarian word.
tartozik
"Belong" or "owe" (context-dependent).
In this sentence, 'tartozik' expresses a relationship of belonging or being a member of a category.
Az alma a gyümölcsök kategóriájába tartozik.
The apple belongs to the category of fruits.
Here, 'tartozik' is used to indicate ownership or association.
A könyv, amit olvasol, Péterhez tartozik.
The book you are reading belongs to Peter.
In this case, 'tartozik' conveys a sense of moral or obligatory responsibility.