ripen (v.)

• advance
• age
• beautify
• become
• better
• bloom
• blossom
• blow
• complete
• crown
• culminate
• cultivate
• develop
• elaborate
• embellish
• enhance
• evolve
• fester
• finish
• fledge
• flourish
• flower
• grow
• heighten
• improve
• intensify
• matter
• maturate
• mature
• mellow
• perfect
• polish
• progress
• rankle
• refine
• ripe
• run
• season
• suppurate
• temper
• wax
• weep