1. to grow or cause to grow and become more mature, advanced, or elaborate
2. to create or produce something over a period of time
3. to begin to have or experience a particular condition, feeling, or quality

Examples

• Children develop language skills at different rates.
• The company plans to develop a new smartphone app.
• She developed a passion for painting in college.
• The storm developed quickly over the ocean.
• He learned to develop film in the darkroom.
• The city wants to develop the waterfront area.
• Scientists are developing new treatments for the disease.