As a Noun:
1. The quality shown by someone who decides to do something difficult or dangerous, even though they may be afraid. English = courage, bravery. Informal English = guts.
2. A person you admire greatly because they have done things that are courageous or brave. English = hero.
As a Verb or Adjective:
1. To show great courage. English = (be) courageous, (be) brave. Informal English = have guts.