This is the 93rd most frequent Czech word.
týden
The Czech word "týden" means "week" in English.
In this sentence, 'týden' is in the accusative singular form, serving as the direct object of the verb 'strávil jsem' (I spent).
Strávil jsem týden na horách.
I spent a week in the mountains.
'týdnů,' the genitive plural form of 'týden,' denotes a question about the quantity of weeks in a year.
Kolik týdnů je v roce?
How many weeks are in a year?
Here, 'týden' is used in the nominative singular form, indicating the specific week referred to as 'this week.'