intransitive. Of fruit, grain, etc.: to grow or become ripe. Cf. ripen, v. 1b.

intransitive. To become ripe; to grow to maturity, reach the full point of natural growth or development. Now frequently of hope and friendship.

transitive (in passive). To run to seed, to mature. Obsolete.

intransitive. To grow, mature; to become more advanced or elaborate. Also: to change gradually into something more advanced. Hence (more loosely): to…

figurative. intransitive. Of a plan, circumstance, field of study, etc.: to become fully developed; to develop into or to.

intransitive. To come to perfection or maturity. Obsolete. rare.