Definition of “develop”

verb

1. to come or bring to a later or more advanced or expanded stage; grow or cause to grow gradually
2. (tr) to elaborate or work out in detail
3. to disclose or unfold (thoughts, a plot, etc) gradually or (of thoughts, etc) to be gradually disclosed or unfolded
4. to come or bring into existence; generate or be generated  ⇒ he developed a new faith in God 
5. (intr)  often foll by from to follow as a result (of); ensue (from)  ⇒ a row developed following the chairman's remarks 
6. (tr) to contract (a disease or illness)
7. (tr) to improve the value or change the use of (land), as by building
8. (tr) to exploit or make available the natural resources of (a country or region)
9. (tr) photography 
   1. to treat (film, plate, or paper previously exposed to light, or the latent image in such material) with chemical solutions in order to produce a visible image
   2. to process (photographic material) in order to produce negatives and prints
10. biology to progress or cause to progress from simple to complex stages in the growth of an individual or the evolution of a species
11. (tr) to elaborate upon (a musical theme) by varying the melody, key, etc
12. (tr) mathematics to expand (a function or expression) in the form of a series
13. (tr) geometry to project or roll out (a surface) onto a plane without stretching or shrinking any element
14. chess to bring (a piece) into play from its initial position on the back rank
15. (tr) obsolete to disclose or reveal