Another term for peacefulness or calmness is definitely tranquility.
The other words have nothing to do with the feeling of peacefulness of calmness, rather with politics.
Answer:Did you mean frontliner? If so, here is the definition---a person or thing that operates in an advanced, exposed, or conspicuous position. Collins English Dictionary.
Explanation:
A summary must contain all the main points of the story. its just like a mini version of the story contain at least five main points from the story