Peace
To me it’s the feeling of calm, the feeling of not having any troubles. Why should there be wars, why should there be such things as harm, pain, misery and suffering? Without all this it would be peace.
Another thing connected to peace is friendship, not having to be friends with everybody in the whole world but to feel friends rather than enemies with others. In a way it is to NOT be angry, hostile, having a “dislike” with people, our differences is not the thing, it’s about not feeling that another person is someone not like, to hate. About friendship, it is also the positive feeling towards life itself, a kind of optimism towards not only humans. To feel friendly towards the world, to everything outside of you, and even yourself. It’s when you are happy inside, you enjoy the existence of yourself and of life. Something like the idea that everybody should enjoy what we have together, to share the joy of what we are given. Peace could also be more spiritual to me; it can be about the emotions and the peace of mind, that you aren’t a pessimist, not mad at the world, not disliking your life and so on.
Peace is more of an absence of bad things than that something necessarily need to be added, at least how I see the definition of the word. There are of course people who would say that you have to include “good things” to have peace, but the good things could be the absence of the bad stuff.
In a way, peace is the state of the perfect world, kind of the better endpoint at the ultimate scale of good versus bad.