A battle memento is an item that is kept as a reminder of a battle or war. The term 'SCAR' is a four letter word that can be used to describe such an item. It stands for 'Souvenir, Commemorative, Artifact, Relic'. A souvenir is a keepsake or token of remembrance, a commemorative item is something that is made to remember a special event, an artifact is an object made by humans, and a relic is an object that has been preserved from the past.