1. To have powerful, firm muscles which you can see and which make your body look big. English = (be) muscular, (be) muscle-bound.
2. To be able to do lots of physical things with your body, such as carry heavy things or hold things tightly, without getting easily tired. English = (be) strong.
3. To have control or influence over people and events. English = (be) powerful.
4. To give someone the authority or power to do something. English = empower.