This is the 148th most frequent Hungarian word.
héten
"Héten" means "this week" in English.
In this sentence, 'héten' means 'week' in the inessive case, indicating the time frame for the tasks.
Ezen a héten sok dolgom van.
This week I have many tasks.
Here, 'héten' is used with 'jövő', meaning 'next week', again denoting a time period.
A jövő héten találkozunk.
We will meet next week.
In this one, 'héten' is combined with 'múlt', meaning 'last week', referring to the past timeframe.