This is the 9993rd most frequent Turkish word.
aşılarını
"Your/Their vaccines."
Here, 'aşılarını' refers to 'their vaccinations,' indicating the administered health immunizations belonging to the children.
Çocuklar bugün okulda aşılarını oldu.
The children got their vaccinations at school today.
In this sentence, 'aşılarını' means 'their vaccinations,' referring to the immunizations that the dogs should receive.
Köpeklerin aşılarını düzenli olarak yaptırmalısın.
You should have the dogs vaccinated regularly.
Here, 'aşılarını' directly translates to 'your vaccinations,' implying that the person being addressed must not forget their health-related immunizations.