■ verb ( ~s , ~ing , ~ed )
1》 grow or cause to grow and become larger or more advanced.
2》 convert (land) to a new purpose, especially by constructing buildings.
3》 start to exist, experience, or possess: I ~ed an interest in law.
4》 treat (a photographic film) with chemicals to make a visible image.
5》 Chess bring (a piece) into play from its initial position on a player's back rank.
Derivatives
~able adjective
~er noun
Origin
C17 (in the sense 'unfold, unfurl'): from Fr. développer , based on L. dis- 'un-' + a second element of unknown origin found also in envelop .