This is the 161st most frequent Croatian word.
petak
"Petak" means "Friday" in English.
Here, the word 'petak' is used as a noun representing the day of the week.
Danas je petak.
Today is Friday.
In this sentence, 'petak' is used as a standalone noun to indicate a specific day, Friday.
Na koji dan dolaziš? Možda petak.
On which day are you coming? Maybe Friday.
In this example, 'petak' is used in a general sense to denote a recurring day of the week, within the expression 'svaki petak' (every Friday).