This is the 847th most frequent German word.
älteren
"Älteren" means "older" or "elder" in English, typically referring to people.
Here, 'älteren' is used as an adjective describing 'Verwandten', denoting that the relatives are older.
Ich besuche oft meine älteren Verwandten.
I often visit my older relatives.
In this sentence, 'älteren' again acts as an adjective, qualifying 'Schüler' to express their greater age or experience.
Die älteren Schüler hatten mehr Erfahrung.
The older students had more experience.
Here, 'älteren' is used as an adjective that modifies 'Gebäuden', indicating that the buildings are old or belong to a past era.