This is the 217th most frequent Ukrainian word.
людини
The Ukrainian word "людини" means "of a person" or "of a human" in English.
In this sentence, 'людини' is in the Genitive case, indicating possession ('a photo of the person').
Це фото людини, яка допомогла мені.
This is a photo of the person who helped me.
Here, 'людини' is used in the Genitive case as it relates to 'очі' denoting possession ('the eyes of this person').
Я бачив очі цієї людини, і вони були повні радості.
I saw this person's eyes, and they were full of joy.
In this case, 'людини' is still in the Genitive case, indicating the perspective or attribute belonging to the 'person.'