Definition of "Growth" :

noun: the gradual beginning or coming forth

noun: vegetation that has grown

"A growth of trees."

noun: something grown or growing

"A growth of hair."

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

noun: a progression from simpler to more complex forms

"The growth of culture."

noun: a process of becoming larger or longer or more numerous or more important

"The growth of population."

noun: (pathology) an abnormal proliferation of tissue (as in a tumor)