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.
(..) Save yourself, Pinocchio. Pinocchio? Oh, Pinocchio! Pinocchi-- My boy. My brave little boy. Prove yourself brave, truthful and unselfish, and someday you will be a real boy. Awake, Pinocchio. Awake. Father! Whatcha crying for? (..)1940 Pinocchio
(..) l can walk! Because tonight, Geppetto wished for a real boy. - Am l a real boy? - No, Pinocchio. To make Geppetto's wish come true will be entirely up to you. - Up to me? - Prove yourself brave, truthful and unselfish, - and someday you will be a real boy. - A real boy! That won't be easy. (..)1940 Pinocchio