This is the 1892nd most frequent Swedish word.
medicin
Medicine.
Here, 'medicin' is used to refer to a substance or drug intended for treatment or alleviation of a condition.
Jag behöver ta medicin för min huvudvärk.
I need to take medicine for my headache.
In this usage, 'medicin' refers to the field of study dealing with health and diseases, also known as 'medicine'.
Han studerar medicin vid universitetet.
He is studying medicine at the university.
The term 'medicin' here is part of a compound word 'naturalmedicin,' indicating a type of alternative medicine.