Dictionary defines courage that is an ability to confront fear, pain, danger, uncertainty or intimidation. The view of what is courage not only varies among cultures, but among individuals. For instance, some define courage as lacking fear in a situation that would normally generate it. Others, in contrast, define that courage requires one to have fear and then overcome it.
It takes strength to fit in. It takes courage to stand out. It takes strength to feel a friend's pain. It takes courage to feel our own pain. It takes strength to hide feelings. It takes courage to show them.
For me, courage is doing what you're afraid to do and knowing what not to fear.