1. Indebted to someone for their generosity, kindness, or favor. We are much obliged for all you have done on behalf of our father.
2. Thank you very much. A: "Here's your jacket, sir." B: "Much obliged, son."
Rur. Thankful and owing a debt of gratitude. A: Sit down, Elmer, and have a drink on me. B: Much obliged.