Coming to maturity' is a phrase that can refer to the process of growing up, or the development of an individual or thing. The crossword solutions for this term are 'RIPEN, ' 'RIPENED, ' 'AGE, ' 'RIPENS, ' and 'riper.' These words all describe the process of maturing, as ripening is the process of becoming ripe, and aging is the process of getting older. RIPENS and riper are both forms of the verb 'RIPEN, ' which means to become mature or ready for use.