This is the 1715th most frequent Polish word.
siedem
Seven.
The word 'siedem' here functions as a cardinal numeral, used to denote the quantity of 'seven'.
Mam siedem jabłek.
I have seven apples.
In this sentence, 'siedem' indicates a specific hour of the day, used in the context of time.
Wybiła godzina siedem.
It struck seven o'clock.
Here, 'siedem' describes a duration of time, emphasizing the length of days.