- 1[uncountable] the gradual growth of something so that it becomes more advanced, stronger, etc. a baby's development in the womb the development of basic skills such as literacy and numeracy career development
- 2[uncountable, countable] the process of producing or creating something new or more advanced; a new or advanced product the development of vaccines against tropical diseases developments in aviation technology This piece of equipment is an exciting new development. see research and development
- 3[countable] a new event or stage that is likely to affect what happens in a continuing situation the latest developments in the war Are there further developments in the investigation? new buildings
- 4[countable] a piece of land with new buildings on it a commercial/business/housing development
- 5[uncountable] the process of using an area of land, especially to make a profit by building on it, etc. He bought the land for development.
growth
Check pronunciation: development