This is the 544th most frequent Swedish word.
kul
Fun.
Here, 'kul' is used as an adjective to describe something enjoyable or entertaining.
Det var en kul fest.
It was a fun party.
'Kul' describes an activity or experience that is pleasurable or interesting.
Hon tycker att det är kul att lära sig nya språk.
She thinks it's fun to learn new languages.
In this example, 'kul' is used to express that something seems entertaining or positive depending on the context.