This is the 15045th most frequent Turkish word.
sertifikalarını
"Their certificates."
In this sentence, 'sertifikalarını' means 'their certificates' and refers to certificates owned by the students.
Öğrenciler sertifikalarını tören sırasında aldı.
The students received their certificates during the ceremony.
Here, 'sertifikalarını' refers to certificates of individuals who complete the course, indicating possession.
Kursu başarıyla tamamlayanlar sertifikalarını email aracılığıyla alabilir.
Those who successfully complete the course can receive their certificates via email.
The term 'sertifikalarını' in this sentence points to the certificates belonging to the winners, showing the natural possessive usage.