This is the 624th most frequent Italian word.
colpa
Fault; blame; guilt.
In this sentence, 'colpa' is used to indicate responsibility or fault for a situation.
Non è colpa mia se siamo in ritardo.
It's not my fault if we're late.
Here, 'colpa' signifies culpability or the act of being guilty of an action.
Chiedere scusa è importante quando si ha la colpa.
Apologizing is important when one is at fault.
'Colpa' in this context refers to someone's acknowledgment of guilt.