발달이 · 발달을
development, growth, advancement
Example
인터넷의 발달로 생활이 많이 편해졌어요.
Thanks to the development of the internet, life has become much easier.
Word parts
발 start, emit+달 reach
Literally 'set out and reach' a higher stage.
Good to know
Pronounced [발딸]; 발달 is natural growth (body, technology), while 발전 stresses progress toward a better state.
Related words