[nrawe]

Depends where you go, these two terms get used interchangeably (incorrectly IMO) and so there is some semantic drift.

If you were to read Julie Starr's "The Coaching Manual", or "The Coaching Habit", the definition is more or less what I outlined.

If you are familiar with the Leadership Continuum/Situational Leadership, the distinction from there becomes: tell/sell (mentoring), join/consult (coaching).