What does peccadillo mean in English?

A peccadillo is a minor sin or fault. It's a small, insignificant offense or mistake that doesn't cause much harm.

Think of it like a "minor slip-up" or a "small transgression".

Here are some examples:

* "Forgetting to call your friend back is just a peccadillo, don't worry about it too much."

* "Eating a cookie before dinner is a peccadillo compared to robbing a bank."

Essentially, it's a word used to describe something that's considered minor and not worthy of serious concern.