Coaching refers to a method of knowledge distribution with the objective of deepening learning and improving performance. The coach is usually not an employee of the organization but an outside consultant
Other /More definition:
Coaching is a method of training in which a new employee receives on-the-job guidance from anexperienced employee. Moreover, Coaching refers to the method of social-skills training in which an adult displays and explains various socially skilled behaviors, allows the child to practice them, and provides feedback aimed at improving the child’s performances