Reached maturity is a term that describes the process of something growing and developing until it reaches its full potential. In this context, it can be used to describe the growth of a person, an animal, or a plant. The crossword solutions for this term are 'grew' and 'RIPENED'. Grew is a verb that means to increase in size or number over time, while RIPENED is a verb that means to become mature or ready for use. Together, these two words describe the process of something reaching its full potential.