She tried to 'put on/up a brave face/front' [=she tried to appear brave or calm] despite the pain of the injury.
The company was slow to enter the 'brave new world' of computer technology.
I had to 'brave the elements' [=go out in bad weather] to get to work.
(..) under the water Where he was safe for the night. After the Storm, Natsaclane again searched for the braves. But all he found Was a huge log. He began carving a great beast on the log... And tried carrying it (..)1993 Free Willy