What is the Greek for hello?

The most common Greek greeting for "hello" is γεια σου (pronounced "ya sou").

Here are some other ways to say "hello" in Greek, depending on the context:

* καλημέρα (kalimera) - good morning

* καλησπέρα (kalispera) - good evening/afternoon

* καληνύχτα (kalinichta) - good night

* χαίρετε (chairete) - a more formal hello, often used in a business setting

The choice of greeting depends on the time of day and the level of formality.