This is the 2817th most frequent Russian word.
словакия
Slovakia (a country in Central Europe).
The word 'Словакия' is a proper noun denoting the name of the country in its nominative case.
Словакия - это страна в Центральной Европе.
Slovakia is a country in Central Europe.
Here, 'Словакию' is the accusative case of 'Словакия', showing the object of the action.
Я собираюсь посетить Словакию этим летом.
I am planning to visit Slovakia this summer.
In this case, 'Словакии' is the genitive case of 'Словакия', used to denote possession or relation.