This is the 12622nd most frequent Turkish word.
ilkelerini
"Principles" or "ideals" in the accusative case (referring to "its/her/his/their principles").
Here 'ilkelerine' means 'principles,' referring to standards or values upheld by a group, in this case, the family.
O, hayatını ailesinin ilkelerine göre düzenledi.
He organized his life according to his family's principles.
In this context, 'ilkelerine' pertains to societal principles, representing shared values or norms within a community.
Toplumun ilkelerini anlamadan, iyi bir lider olamazsınız.
Without understanding the principles of society, one cannot be a good leader.
The term 'ilkelerini' here refers to the personal principles or beliefs held by an individual, in this case, the friend's values.