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adjective
gallant - Brave, heroic.
plucky - Having or showing determined courage in the face of difficulties
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audacious - To be very confident and daring : very bold and surprising or shocking
noun
valor - Great courage in the face of danger, especially in battle
maverick - An unorthodox or independent-minded person
warrior - A person with courage and the inclination to fight and win
spunky - Courageous and determined
gutsy - Showing courage, determination, and spirit
verve - Vigor and spirit or enthusiasm
Mettle - Strength of character — showing resilience and spirit.
moxie - Force of character, determination, or nerve
verb
Embolden - To give someone the courage or confidence to do something.