Here are some other ways to say hello in Italian, depending on the situation:
* Buongiorno (Good morning) - Used from sunrise to noon.
* Buon pomeriggio (Good afternoon) - Used from noon to evening.
* Buonasera (Good evening) - Used from evening onwards.
* Salve (Hello) - More formal than "Ciao" and can be used at any time of day.
It's important to note that "Ciao" is the most versatile and commonly used greeting.