Was heißt »Beherztheit« auf Englisch?

Das Substantiv Beherztheit lässt sich wie folgt von Deutsch auf Englisch übersetzen:

Synonyme

Suffering devours your heart, and also your courage.
When congress once again voted for a speed limit of 100, I at least gathered the courage to disappear into the restroom.
Do you have the courage to do this?
I don't have the courage to inform him of what happened.
Have the courage to defend your ideas!
I really admire your courage.
Tom didn't have the courage to break up with Mary.
Do you have the courage to do that?
There was a massacre, and we didn't have enough courage to intervene.
We should have the courage to learn something new and to make mistakes.
Tom at last summoned the courage to tell Mary that he loved her.
Tom at last plucked up the courage to tell Mary that he loved her.
With a courage born of despair, she faced her opponent in a duel.
I'm thankful for this word! It did me good in this difficult hour and renewed my courage.
All our dreams can come true, if we have the courage to pursue them.
Submission requires moral courage.
He plucked up his courage and proposed to her.
He admired Tom's courage.
A pound of courage is worth a ton of luck.
Tom still hasn't got the courage to tell Mary what he did.