This is the 14841st most frequent Turkish word.
sakinini
The Turkish word "sakinini" means "its resident" or "the resident of it."
Here, 'sakinini' is referring to the resident (inhabitant) of a place, used possessively in the sentence.
Bu köyün sakinini tanıyor musun?
Do you know the resident of this village?
In this instance, 'sakinini' pertains to an inhabitant of the apartment, highlighting a possessive relation.
Apartmanın sakinini rahatsız etmeyelim.
Let's not disturb the resident of the apartment.
Here, 'sakinini' refers metaphorically to the 'calmness' (quiet nature) of the work environment, indicating possession.