This is the 543rd most frequent Swedish word.
kinesiska
The Swedish word "kinesiska" means "Chinese" (the language).
The word 'kinesiska' is used here to refer to the Chinese language as the object of learning.
Jag lär mig kinesiska varje dag.
I learn Chinese every day.
In this sentence, 'kinesiska' again denotes the Chinese language, specifically as a skill someone possesses.
Min vän talar kinesiska flytande.
My friend speaks Chinese fluently.
'Kinesiska' is an adjective here describing 'tecknen' (the characters), indicating they are Chinese in origin.