This is the 2524th most frequent Swedish word.
lektion
"Lesson" or "class session."
Here, 'lektion' refers to the instructional content or plan being prepared.
Jag förbereder en lektion för imorgon.
I am preparing a lesson for tomorrow.
In this sentence, 'lektion' represents a single event or session of teaching.
Hennes lektion om historia var mycket intressant.
Her lesson on history was very interesting.
Here, 'lektion' refers to a scheduled period of instruction in the subject of mathematics.