This is the 9713th most frequent Russian word.
швейцария
"Швейцария" translates to "Switzerland," the country in Europe.
In this sentence, 'Швейцария' is used as the name of the country, Switzerland, functioning as the subject of the sentence.
Швейцария расположена в горах центральной Европы.
Switzerland is located in the mountains of Central Europe.
Here, 'Швейцарии' is in the prepositional case, referring to Switzerland and indicating location or place where the action occurs.
В Швейцарии производят часы высокого качества.
In Switzerland, high-quality watches are produced.
In this example, 'Швейцарию' is in the accusative case, as it is the direct object of the verb 'посетить' (to visit).