This is the 13038th most frequent Turkish word.
kapanık
"Closed" or "shut."
In this sentence, 'kapanık' is used as an adjective to describe the state of the house being shut or sealed to retain warmth.
Ev sıkıca kapanık olduğu için içerideki sıcaklık korunuyor.
The house is tightly closed, so the warmth inside is preserved.
Here, 'kapanık' describes a personality trait, indicating that the person is introverted or reserved.
Fatma’nın kapanık bir kişiliği var, çok az konuşur.
Fatma has a reserved personality, she speaks very little.
In this instance, 'kapanık' refers to the physical state of the box being closed securely to prevent spilling of contents.