Pronunciation: ( jō'nu),[key] —n. 1. a Minor Prophet who, for his impiety, was thrown overboard from his ship and swallowed by a large fish, remaining in its belly for three days before being cast up onto the shore unharmed.
2. a book of the Bible bearing his name.
3. any person or thing regarded as bringing bad luck.
4. Also,Jo•nasPronunciation: ( jō'nus).[key]a male given name: from a Hebrew word meaning “dove.”