No, an anagram is taking the letters of a word and making another word from those same letters. An example: arch=char
You may be thinking of an antonym which is a word that means the opposite, such as night-day.
A synonym is a word that means much the same thing, such as happy-glad.
Peace and courage are none of these, they're just separate words except for example, when enough people have courage it may lead to peace.
There is no anagram for the word "peace".
An anagram of the word deaf is "fade."
The word 'blow' is an anagram for bowl.
An anagram for the word life is file.This is the only possible anagram for the word life.
The anagram of the word lived is devil.This is the only possible anagram of the word lived.
The anagram for the word 'satin' is STAIN.
The anagram for the word shore is horse.
An anagram for the word rear is rare
The anagram for the word lift is flit.
An anagram for the word night is thing.
An anagram of the word "save" is vase.
The anagram of the word continued is unnoticed.