This is the 16593rd most frequent Turkish word.
yetkilisi
"Yetkilisi" means "authorized person" or "official" in English.
The word 'yetkilisi' is used here as a specific representative or authorized person responsible for the hotel.
Otelin yetkilisi size yardımcı olabilir.
The official/representative of the hotel can assist you.
'Yetkilisi' in this sentence designates an official person with authority in a governmental or administrative organization.
Bu konuyla ilgili belediye yetkilisi ile iletişime geçmelisiniz.
You should contact the municipal official regarding this matter.
Here, 'yetkilisi' specifies the organizer or the person given authority over the sports event.