If countries or groups involved in a war or violent conflict are discussing peace, they are talking to each other in order to try to end the conflict.

If there is peace in a country or in the world, there are no wars or violent conflicts going on.

If you disapprove of weapons, especially nuclear weapons, you can use peace to refer to campaigns and other activities intended to reduce their numbers or stop their use.

If you have peace, you are not being disturbed, and you are in calm, quiet surroundings.

If you have a feeling of peace, you feel contented and calm and not at all worried. You can also say that you are at peace.

If there is peace among a group of people, they live or work together in a friendly way and do not quarrel. You can also say that people live or work in peace with each other.

The Peace of a particular place is a treaty or an agreement that was signed there, bringing an end to a war.

If you hold or keep your peace, you do not speak, even though there is something you want or ought to say.

If someone in authority, such as the army or the police, keeps the peace, they make sure that people behave and do not fight or quarrel with each other.

If the law requires you to keep the peace, you must behave well and not cause any trouble in public.

If you make peace with someone or make your peace with them, you put an end to your quarrel with them, often by apologizing.

If something gives you peace of mind, it stops you from worrying about a particular problem or difficulty.

If you express the wish that a dead person may rest in peace, you are showing respect and sympathy for him or her. 'Rest in peace' is also sometimes written on gravestones.

If you are at peace with yourself or at peace with the world, you feel calm and contented, and you have no emotional conflicts within yourself or with other people.