This is the 3309th most frequent Turkish word.
ilçeye
"To the district."
In this sentence, 'ilçeye' refers to the location (district) where the library was opened, indicating a direction towards or within the district.
Dün ilçeye yeni bir kütüphane açıldı.
Yesterday, a new library was opened in the district.
Here, 'ilçeye' signifies the destination (district) that the speaker and friends are planning to go to.
Arkadaşlarla tatil için ilçeye gitmeye karar verdik.
We decided to go to the district with friends for a holiday.
In this instance, 'ilçeye' describes the district as the new location where the neighbors moved to, indicating the direction towards an area.