This is the 2700th most frequent Russian word.
беларусью
"Беларусью" means "By Belarus" or "Through Belarus," depending on context, often referring to movement or association with Belarus.
In this sentence, "Беларусью" is used in the instrumental case, indicating the means or manner of admiration.
Я восхищаюсь красивой и гостеприимной Беларусью.
I admire the beautiful and hospitable Belarus.
Here, "Беларусью" is in the instrumental case, showing the area of travel.
Мы путешествовали по всей Беларусью и посетили известные достопримечательности.
We traveled across all of Belarus and visited famous attractions.
In this usage, "Беларусью" is used in the instrumental case to denote the location where the vacation is enjoyed.