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.
(..) Harry Potter... ... The Boy Who Lived... ... come to die. You can't help... Harry, you wonderful boy... You brave, brave man! Let us walk. Professor, what is that? Something beyond either of our help. A part of Voldemort sent here to die. And exactly where are we? (..)2011 Harry Potter and the Deathly Hallows: Part 2
(..) - No, kill the snake. Kill the snake, and then it's just him! I'm ready to die. Resurrection Stone. You've been so brave, sweetheart. Why are you here? All of you. We never left. Does... Does it hurt? (..)2011 Harry Potter and the Deathly Hallows: Part 2