This is the 5024th most frequent Swedish word.
ca
Approximately.
Here, 'ca' is used as an abbreviation for 'circa', indicating an approximate amount of time to walk to the station.
Det tar ca 10 minuter att gå till stationen.
It takes approximately 10 minutes to walk to the station.
In this sentence, 'ca' denotes an estimate regarding the number of lessons the course comprises.
Kursen omfattar ca 35 lektioner.
The course includes approximately 35 lessons.
Here, 'ca' implies an approximate time of arrival, showing uncertainty or flexibility about the time mentioned.