Reskilling is the systematic process by which individuals or workforces acquire new and distinct skill sets to facilitate occupational transition or significant adaptation to evolving job roles. As a research concept, it investigates the strategies, mechanisms, and outcomes associated with this acquisition and transition, particularly in response to technological change, economic shifts, or organizational restructuring. Key characteristics include the focus on developing capabilities outside an existing skill domain to enable lateral or cross-functional mobility. Its significance lies in promoting workforce adaptability, enhancing organizational capability, and addressing skill gaps within dynamic labor markets.