This is the 8516th most frequent Russian word.
новолеушинской
"Новолеушинской" refers to something related to Novoleushinsky, typically a location or settlement in Russia.
As the main subject, emphasizing its characteristics.
Новолеушинская — это тихое место с красивой природой.
Novoleushinskaya is a quiet place with beautiful nature.
In the accusative case as the destination in the sentence.
Мы поехали в Новолеушинскую в прошлые выходные.
We went to Novoleushinskaya last weekend.
As a proper noun indicating a geographic location.