In the pantheon of people with magical power, the following ranking exists:

magicians – people without magical power but who have learned how to manipulate magic through spells and other rituals.

witches and warlocks – the least powerful of those with innate power, varying levels of knowledge on how to use it.

wizards and sorcerers – people with a great deal of innate power, and varying degrees of knowledge on how to use it.

Mystics – mystics are essentially wizards/warlocks but have special “mystical” knowledge which enables them to multiply their innate power many fold.