to build up or expand (a business, industry, etc.) to make stronger or more effective; strengthen (muscles) to bring (something latent or hypothetical) into activity or reality to cause (one's personality, a bud, etc.) to unfold or evolve gradually to make (housing, highways, etc.) more available or extensiveChess to position (chessmen or a chessman) strategically in the early stages of a gameMusic to elaborate (a theme) as by rhythmic or melodic changesPhotog.
to immerse (an exposed film, plate, or printing paper) in various chemical solutions in order to make the picture visible
to make (a picture) visible by doing this
to make (a theme or plot) known gradually to explain more clearly; enlarge uponGeom. to change the form of (a surface); esp., to flatten out (a curved surface)Math. to work out in detail or expand (a function or expression)
intransitive verb
to come into being or activity; occur or happen
to become larger, fuller, better, etc.; grow or evolve, esp. by natural processes
☆ to become known or apparent; be disclosed
to progress economically, socially, and politically from an underdeveloped condition: the developing nations