Here are examples of the word/phrase "braveness" used in a sentence and paraphrased in a sentence...
It takes a lot of braveness to fight for freedom by rebelling against the government.
It takes a lot of fearlessness to fight for freedom by rebelling against the government.
No matter how many times I fall, my braveness will allow me to get back up.
No matter how many times I fall, my valiantness will allow me to get back up.
Other Examples...