The term 'leave one's mark' refers to the act of making a lasting impression on something or someone. This phrase can be broken down into three crossword solutions: GRADE (5 letters), ETCH (4 letters), and IMPRESS (7 letters). GRADE is a verb meaning to evaluate or assign a level of quality to something. ETCH is a verb meaning to carve or engrave a design or words into a surface. IMPRESS is a verb meaning to make a strong and often favorable impression on someone. Together, these three words describe the act of leaving one's mark, which is to make a lasting impression on something or someone.