This is the 3785th most frequent Swedish word.
insändaren
A "letter to the editor."
Here, 'insändare' refers to a letter submitted by a reader to a newspaper, often expressing opinions.
Jag läste en intressant insändare i morgontidningen.
I read an interesting submission in the morning newspaper.
In this sentence, 'insändaren' signifies the content of the submitted letter being discussed.
Insändaren tog upp frågor om miljö och hållbarhet.
The submission addressed topics about environment and sustainability.
'Insändare' is used to indicate the type of document students are tasked to write.