Meaning of “development” - Learner’s Dictionary

development

noun us uk /dɪˈveləpmənt/
intellectual and physical developmentresearch into language developmentThis was a necessary step towards her own development as an artist.The school supports the professional development of its teachers.The scheme aims to help the development of young tennis players.
CHANGE [ C, U ]

B1 the process of growing, changing, or becoming more advanced:

The nurse will do some tests to check on your child's development.
There have been some major developments in technology recently.
MAKE [ C, U ]

B1 the process of making something new:

the development of new drugs
START [ U ]

a situation in which something starts to happen or exist:

Smoking encourages the development of cancer.
BUILD [ U ]

the process of building new houses, factories, shops, etc, on an area of land:

land suitable for development
BUILDINGS [ C ]

an area of land with new houses, factories, shops, etc on it:

a new housing development
EVENT [ C ]

B2 something new that happens and changes a situation:

Have there been any more developments since I left?
PHOTOGRAPH [ U ]

the process of making photographs from a film

(Definition of “development” from the Cambridge Learner’s Dictionary © Cambridge University Press)