This is the 142nd most frequent Croatian word.
hrvatski
"Croatian" (relating to the Croatian language, people, or culture).
Here, 'hrvatski' is used as an adjective to describe the noun 'proizvod' (product), indicating its origin from Croatia.
Ovo je hrvatski proizvod.
This is a Croatian product.
In this sentence, 'hrvatski' is used as an adjective modifying 'jezik' (language), referring to the Croatian language.
Učim hrvatski jezik.
I am learning the Croatian language.
In this case, 'hrvatski' functions as an adverb, referring to the act of speaking the Croatian language.