The phrase "made an impression" typically refers to leaving a lasting impact or influence on someone. There are a variety of synonyms that can be used to convey a similar meaning, such as "left a mark," "imprinted," "etched," "impressed," "influenced," "affected," "touched," "moved," and "captivated." Each of these alternatives can help to enhance the narrative of your writing by providing a more specific and descriptive portrayal of how someone or something impacted another person. Employing a diverse vocabulary can also add layers of nuance and complexity to your writing, helping you to better express your ideas and evoke more colorful and vivid imagery.