Developing meaning : To change with a specific direction, progress. To progress through a sequence of stages. To advance; to further; to promote the growth of. To create. To bring out images latent in photographic film. To acquire something usually over a period of time. To place one's pieces actively. To cause a ball to become more open and available to be played on later. Usually by moving it away from the cushion, or by opening a pack. To change the form of (an algebraic expression, etc.) by executing certain indicated operations without changing the value. A process of development. In the process of development. Of a country: becoming economically more mature or advanced; becoming industrialized.