What does dona mean in Yiddish?

"Dona" is not a word in Yiddish. It's a Spanish word that means "lady" or "woman."

It's possible you might be thinking of a different word, or you might be hearing it used in a Yiddish context where it has been adopted, possibly with a slight shift in meaning.

Could you give me more context about where you heard the word "dona"? This will help me understand what you're asking and potentially give you a more accurate answer.