This is the 5138th most frequent Swedish word.
czech
In Swedish, "czech" refers to something or someone from the Czech Republic (e.g., Czech).
In this sentence, 'Tjeckien' refers to the Czech Republic, the country.
Jag har alltid velat besöka Tjeckien.
I have always wanted to visit the Czech Republic.
In this sentence, 'tjeckiska' refers to the Czech language.
Han talar flytande tjeckiska.
He speaks fluent Czech.
In this sentence, 'tjeckisk' describes the nationality, 'Czech' in English.