This is the 380th most frequent Swedish word.
period
A length or span of time.
Here, 'period' refers to a span of time characterized by certain events or conditions.
Jag har haft en stressig period på jobbet.
I have had a stressful period at work.
In this case, 'period' denotes the menstrual cycle, a biological occurrence.
Hon väntar på att hennes period ska börja.
She is waiting for her period to start.
The term 'period' here is used to signify a specific epoch or era within a larger timeline.