This is the 1126th most frequent Turkish word.
haftada
"Haftada" means "per week" or "in a week" in English.
Here, 'haftada' is used to describe the frequency within the timeframe of a week (weekly).
Ben haftada iki kez koşuya çıkıyorum.
I go for a run twice a week.
In this sentence, 'haftada' conveys the time frame during which the event happens and its recurring nature.
Bu etkinlik haftada bir kez düzenleniyor.
This event is organized once a week.
'Haftada' here signifies the total count or extent within a week.