This is the 59th most frequent Croatian word.
hrvatska
"Croatia" (a country in Europe).
Here, 'Hrvatsku' is used as the direct object of the verb 'volim', in the accusative case, referring to the country.
Volim Hrvatsku zbog njezine prekrasne obale.
I love Croatia for its beautiful coastline.
In this sentence, 'Hrvatska' is in the nominative case as the subject of the sentence, representing the country.
Hrvatska je poznata po Dubrovniku i plavom Jadranu.
Croatia is known for Dubrovnik and the blue Adriatic.
Here, 'hrvatski' is an adjective derived from 'Hrvatska', modifying 'jezik' and describing the type of language studied.