This is the 2042nd most frequent Russian word.
алиев
The word "алиев" is a common Russian surname, typically transliterated as "Aliyev" in English.
Here, 'Алиев' is used as a personal name, likely functioning as the subject of the sentence.
Алиев идет в магазин.
Aliyev is going to the store.
In this case, 'Алиевых' refers to the surname in the genitive plural form, indicating possession or relation.
История семьи Алиевых интересная.
The history of the Aliyev family is interesting.
Here, 'Алиевым' is the instrumental case of the proper noun 'Алиев', used to indicate interaction or an action involving this person.