Umbna Meaning: Twenty Origin: Unknown true Use: Niokoe na umbna = Help me out with twenty shilling Period: Early 2000 Synonyms: Mbaula Mbao Omba Pound Lumba Pronounciation: (Verb) [ ooh-m-bnah ] Relate: Mbana Doo Variations: - History: Likes: 1 Share Back Comments No comments yet. Be the first to comment! Please sign in to leave a comment.