(n)growth, growing, maturation, development, ontogeny, ontogenesis(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“he proposed an indicator of osseous development in children”
(n)increase, increment, growtha process of becoming larger or longer or more numerous or more important“the increase in unemployment”, “the growth of population”