What do you call a developmental relationship where an experienced person assists a less experienced individual?

The term that best describes a developmental relationship where an experienced person assists a less experienced individual is "mentor." Mentoring involves a more seasoned individual offering guidance, support, and wisdom to help the mentee grow personally and professionally.

This relationship typically focuses on longer-term development rather than just skill acquisition or immediate tasks. A mentor often helps the mentee navigate challenges, develop critical thinking skills, and explore career paths, providing insights based on their own experiences.

While a trainer focuses on teaching specific skills and knowledge, and a coach may work with individuals to enhance performance in a targeted area, mentoring emphasizes broader personal and professional growth. An advisor may offer guidance as well; however, the mentoring relationship is generally more personal and involves a deeper commitment to the overall development of the mentee.