This is the 1546th most frequent Turkish word.
isimlerin
"Of the names" or "names'" (possessive form).
Here 'isimlerin' means 'the names' in the genitive plural form, showing possession about the meanings.
İsimlerin anlamlarını öğrenmek için sözlüğe baktım.
I checked the dictionary to learn the meanings of the names.
'İsimlerin' indicates the genitive plural 'of the names' belonging to the heroes, responsible for contextual focus.
Bu kitapta kahramanların isimlerin önemli bir rol oynadığı belirtiliyor.
In this book, it is stated that the names of the heroes play an important role.
The plural genitive case of 'isimler', specifying that the names are associated with the project's usage.