Meaning
as, since (causality)
- as, since, because
In a sentence
Siccome piove, resto a casa stasera.
Since it's raining, I'm staying home tonight.
Siccome era tardi, abbiamo preso un taxi.
Since it was late, we took a taxi.
Siccome hai già mangiato, non preparo niente?
Since you've already eaten, shouldn't I make anything?
Usage notes
- Use siccome mainly for cause at the start of a sentence; perché is more flexible and common after the main clause.
- Siccome can also mean "just as/like" in comparisons, but this use is literary or old-fashioned for many speakers.
- Avoid using siccome in very formal writing; poiché or dato che usually sound more formal and neutral.