(n.) The process of bringing, or of coming, to maturity; hence, specifically, the process of suppurating perfectly; the formation of pus or matter.

accomplishment advance advancement aging amplification beautification blossoming budding burgeoning close completing completion conclusion culmination development developmental change elaboration embellishment end ending enlargement evolution evolutionary change evolvement evolving excrescence expansion explication finish finishing flowering full development furtherance gemmation germination gradual change growth maturescence maturity mellowing natural development natural growth nonviolent change outgrowth overgrowth perfection procreation progress progression pullulation refinement reproduction ripeness ripening rise rounding off rounding out seasoning senescence sprouting tempering termination terminus topping off upgrowth vegetation windup