What is the Meaning & Definition of peace

Peace can be a State, an agreement, a process of understanding between groups, while harmony, peace and non-violence, will be present and characteristics required in each of these ways in which it is given.
In the first case, the State, the term is used to describe and characterize the mood moment inside of stillness and calm an individual may be going through. When we referred to the collective process of understanding between different social groups that make up a country, we are to what is commonly called social peace. For this reason, when for example the press wants to describe the moment of calm that frequently happens to a burst of the society for any political or economic reason, often use the concept of social peace to give people a sense that peace is collective and not a single group or individual.
Meanwhile, international law often use the term to refer to a Convention or treaty peace that puts an end to a conflict. For example, the peace of Westphalia, because always it is customary to put the name of the place in which the peace agreement was achieved.
Then and as consequence of the relationship between peace with harmony, peace and non-violence is that usually the peace has become a goal to reach and desired both for oneself and for others.
The circle divided in the middle and crossed at the same time by two sticks and the Dove with the olive in your mouth branch, are the most characteristic of peace symbols.
Even, it is a prized status collectively, humanity decided to reward those who do hard work to get it, in this way the famous Nobel prizes have a category, the Nobel Laureate who is responsible for timely reward them every year.