the act or process of developing; growth; progress

child development; economic development.

a significant consequence or event

recent developments in the field of science.

a developed state or form

Drama reached its highest development in the plays of Shakespeare.

Music . the part of a movement or composition in which a theme or themes are developed.

a large group of private houses or of apartment houses, often of similar design, constructed as a unified community, esp. by a real-estate developer or government organization.

Chess . the act or process of developing chess pieces.

Mining . the work of digging openings, as tunnels, raises, and winzes, to give access to new workings, and of erecting necessary structures.