This is the 4325th most frequent Dutch word.
bosnisch
Bosnian.
The word "bosnisch" in the sentence is used as an adjective describing the origin or type of the dish as being Bosnian.
Ik heb gisteren een bosnisch gerecht gegeten.
Yesterday, I ate a Bosnian dish.
Here, "bosnisch" is used as an adjective that expresses the affiliation or identity of the flag as being Bosnian.
Die vlag daar is bosnisch.
That flag over there is Bosnian.
The term "bosnisch" in this context refers to the language, indicating that the speech was conducted in the Bosnian language.