This is the 21st most frequent Czech word.
před
"Before" or "in front of."
Here, 'před' is used as a preposition indicating location, meaning 'in front of'.
Před domem stojí auto.
A car is standing in front of the house.
In this sentence, 'před' functions as a preposition of time, translating to 'ago'.
Už jsem jí to řekl před týdnem.
I already told her a week ago.
Here, 'před' is used to indicate a point in time before an event, meaning 'before'.