| 1. | to ward off attack from; guard against assault or injury (usually fol. by from or against): The sentry defended the gate against sudden attack. |
| 2. | to maintain by argument, evidence, etc.; uphold: She defended her claim successfully. |
| 3. | to contest (a legal charge, claim, etc.). |
| 4. | Law. to serve as attorney for (a defendant): He has defended some of the most notorious criminals. |
| 5. | to support (an argument, theory, etc.) in the face of criticism; prove the validity of (a dissertation, thesis, or the like) by answering arguments and questions put by a committee of specialists. |
| 6. | to attempt to retain (a championship title, position, etc.), as in a competition against a challenger. |
| 7. | Law. to enter or make a defense. |
