When you relive something, you go back through it in your mind so clearly that the feelings come with it — the joy, the shame, the fear. You are not living that day again in the street; you are inside the memory, or inside a picture of it so sharp it feels present. People relive a holiday, a wedding, a goal in a match; they also say they do not want to relive a crash or a fight. Films and old photos can help you relive a time. Though actually, the word is stronger than remember. Remember can be a dry fact: I remember the date. Relive is the body joining in. After a very bad night, a person may relive it in dreams, whether they wish to or not. It is ordinary English, more at home in stories and feelings than in a shopping list.