The crossword solution for the term 'HITTING 100, SAY' is AGING. This term is used to describe the process of growing older and the effects of time on a person or object. It is often used to refer to the physical changes that occur as a person ages, such as wrinkles, gray hair, and decreased mobility. It can also be used to refer to the mental and emotional changes that come with age, such as increased wisdom and maturity.