This is the 10th most frequent Italian word.
da
The Italian word "da" can mean "from," "by," "since," "of," "at," or "to," depending on context.
In this sentence, 'da' is used to indicate origin or source, showing where the subject is coming from.
Vengo da Roma.
I come from Rome.
Here, 'da' specifies the agent in a passive construction, indicating who performed the action.
Questa casa è stata costruita da mio padre.
This house was built by my father.
In this example, 'da' is used to denote the duration of time since the beginning of an action.