This is the 950th most frequent Persian word.
نزدیکی
"نزدیکی" means "proximity" or "closeness" in English.
In this sentence, 'نزدیکی' is used as a noun meaning 'proximity' or 'nearness', modifying the clause 'to the sea'.
خانهی ما نزدیکی دریا است.
Our house is near the sea.
Here, 'نزدیکی' functions as a prepositional phrase meaning 'near', establishing the relationship between 'the park' and 'the library'.
در نزدیکی کتابخانه یک پارک هست.
There is a park near the library.
In this context, 'نزدیکی' refers to 'closeness' or an emotional and physical 'proximity', emphasizing his preference for family closeness.