The term 'left an impression' can be summarized by two crossword solutions: 'etched' and 'DINGED'. 'Etched' means to carve or engrave a design, text, or pattern into a hard surface. It is often used to describe the process of creating a lasting mark or image. 'DINGED' means to make a dent or mark on a surface. It is usually used to describe a minor damage or scratch on a surface. Both words imply that something has been left behind, either intentionally or unintentionally, and that it will remain for some time.