noun

• (uncountable) The process of developing; growth, directed change.
• (uncountable, biology) The process by which a mature multicellular organism or part of an organism is produced by the addition of new cells.
• (countable) Something which has developed.
• (real estate, countable) A project consisting of one or more commercial or residential buildings.
• (real estate, uncountable) The building of such a project.
• (uncountable) The application of new ideas to practical problems (cf. research).
• (chess, uncountable) The active placement of the pieces, or the process of achieving it.
• (music) The process by in which previous material is transformed and restated.
• (music) The second section of a piece of music in sonata form, in which the original theme is revisited in altered and varying form.
• (mathematics) The expression of a function in the form of a series.