| verb | develop and reach maturity; undergo maturation “He matured fast” |
| verb | grow old or older “She aged gracefully” |
| verb | ripen and generate pus “her wounds are festering” |
| maturement | noun | coming to full development; becoming mature |
| maturation | noun | coming to full development; becoming mature |
| growth | noun | a progression from simpler to more complex forms |
| growing | noun | (biology) the process of an individual organism growing organically; a purely biological unfolding of events involved in an organism changing gradually from a simple to a more complex level |
| senescent | adjective | growing old |
| age | noun | a time of life (usually defined in years) at which some particular qualification or power arises |
| festering | noun | (medicine) the formation of morbific matter in an abscess or a vesicle and the discharge of pus |
| fester | noun | a sore that has become inflamed and formed pus |
| suppurative | adjective | relating to or characterized by suppuration |
| suppuration | noun | (medicine) the formation of morbific matter in an abscess or a vesicle and the discharge of pus |