This is the 10143rd most frequent Swedish word.
indonesiska
Indonesiska: Indonesian (language).
Here, 'Indonesiska' is used as a noun to refer to the Indonesian language.
Hon gick till biblioteket för att låna en bok om Indonesiska språket.
She went to the library to borrow a book about the Indonesian language.
In this sentence, 'indonesiska' is used as a noun to denote an Indonesian woman.
Min vän är indonesiska, och hon älskar att laga traditionell mat.
My friend is Indonesian, and she loves cooking traditional food.
Here, 'indonesiska' functions as a noun referring to the Indonesian language.