Take a risk; perform a daring act.

Roget 861: be courageous etc. adj.; dare, venture, make bold; face danger, front danger, affront danger, confront danger, brave danger, defy danger, despise danger, mock danger; look in the face; look full in the face, look boldly in the face, look danger in the face; face; meet, meet in front; brave, beard; defy etc. 715.    take courage, muster courage, summon up courage, pluck up courage; nerve oneself, take heart; take heart, pluck up heart of grace; hold up one's head, screw one's courage to the sticking place; come up to scratch; stick to one's guns, standfire^†, stand against; bear up, bear up against; hold out etc. (persevere) 604.1. put a bold face upon; show a bold front, present a bold front; show fight; face the music.    bell the cat, take the bull by the horns, beard the lion in his den, march up to the cannon's mouth, go through fire and water, run the gantlet.    give courage, infuse courage, inspire courage; reassure, encourage, embolden, inspirit, cheer, nerve, put upon one's mettle, rally, raise a rallying cry; pat on the back, make a man of.   , keep in countenance.    ... show more