This is the 2457th most frequent Turkish word.
kararın
"Kararın" means "your decision" in English.
The word 'kararın' is the second-person singular possessive form of 'karar' which means 'decision'. It's used to indicate something belonging to 'you'.
Kararın doğruluğundan emin misin?
Are you sure about the accuracy of your decision?
Again, 'kararın' is possessive and indicates that the decision belongs to 'you', used within a context to illustrate commitment.
Kararın, bu işte ne kadar ciddi olduğunu gösteriyor.
Your decision shows how serious you are in this matter.
Here, 'kararın' refers to a specific decision previously made by 'you', framed within relative clauses.