This is the 138th most frequent Italian word.
tra
The Italian word "tra" means "between" or "among" in English.
In this case, 'tra' expresses a time frame after which something will occur (a few days from now).
Tra pochi giorni partirò per un viaggio.
In a few days, I will leave for a trip.
Here, 'tra' signifies a relationship or connection among people (between us).
C'è un accordo tra di noi.
There is an agreement between us.
Here, 'tra' is used to indicate a physical location between two distinct objects (the mountains).