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.
(..) Look at this snowman right here, man. Sweet ride. What you running under there, man? - Going to make me find out the hard way? - Hell, yeah. You brave. You brave. They call me Hector. I got a last name, too, but I can't pronounce it. - Brian Spilner. - Typical white-boy name. (..)2001 The Fast and the Furious