What does the word kalo mean in greek?

There isn't a single, universally accepted meaning for "kalo" (καλό) in Greek. It depends heavily on context. Its most common meanings are:

* Good: This is the most frequent translation. It can refer to something being of high quality, morally good, pleasant, or beneficial.

* Nice: Similar to "good," but often used in a more informal context.

* Fine: As in, "I'm fine, thank you."

The word's exact meaning will be clear only from the sentence in which it's used.