development

1. (uncountable) The process of developing; growth, directed change.Examples: "The development of this story has been slow."; "Irregular bedtimes may disrupt healthy brain development in young children, according to a study of intelligence and sleeping habits. ¶ Going to bed at a different time each night affected girls more than boys, but both fared worse on mental tasks than children who had a set bedtime, researchers found."uncountable

2. (uncountable, biology) The process by which a mature multicellular organism or part of an organism is produced by the addition of new cells.Examples: "The organism has reached a crucial stage in its development."; "Of more significance in the nature of branch development; in the Jubulaceae, as in the Porellaceae, branches are acroscopic and normally replace a ventral leaf lobe."uncountable

3. (countable) Something which has developed.Examples: "Our news team brings you the latest developments."countable

4. (real estate, countable) A project consisting of one or more commercial or residential buildings.countable

5. (real estate, uncountable) The building of such a project.uncountable

6. (uncountable) The application of new ideas to practical problems (cf. research).Examples: "Our development department has produced three new adhesives this year."uncountable