Difference between growth and development in Korean
성장·발전

성장growth
Growth (성장) means becoming bigger, taller, or more developed over time. We often use it for plants, animals, and children. You can talk about fast growth, healthy growth, or watch something’s growth in nature.

발전development
Development (발전) means growth, progress, or becoming better over time. People use it for cities, technology, countries, or a person's skills. In nature topics, it can also talk about how places change as people build more.
The difference
성장 is getting bigger or stronger, especially for people, animals, plants, or businesses. 발전 is broader and often means improvement or progress, like in a city, country, or technology.