It's important to note that there are different ways to express "sorry" in French, depending on the context and formality:
* Désolé is the most common and general way to say "sorry."
* Excusez-moi (formal) is used for minor apologies, like bumping into someone.
* Pardon (formal) is used for more serious apologies, like interrupting someone.
* Je suis désolé (I am sorry) is a more emphatic way to express regret.