There are various synonyms for the phrase "leaves a mark", such as "leaves an impression", "makes an impact", "imprints", "stamps", "brands", "etches", "imparts", and "engages". All of these words refer to the idea of something making an indelible impression on a person or an object. Using these synonyms can help to convey a sense of permanence, importance, and lasting significance. For instance, a person's character might leave an impression on others, a social movement might make an impact on a community, or a piece of art might leave a lasting imprint on a viewer's mind. Ultimately, these synonyms can bring a powerful sense of weight and importance to any message or story.