can someone explain how to use the word serenity in a sentence? examples please? Would you say someone is filled with serenity?

Answer 1

Yes. That's an acceptable use of "serenity."

You could also say -- We enjoyed the beauty and serenity of the remote cabin in the woods.

Answer 2

hmhm you could say an "oasis of serenity amidst the bustling city." Serenity means a peaceful or calm state. As to your second question, I am not sure.