Witch - W

Weather Witch = Just what it sounds like, a Weather Witch utilizes magick to manipulate and call down the elements of the air. She can summon fog to cover her tracks, pummel her foes with lightning strikes and gale force winds, and finally, she can torment targets with precipitous drops in temperature. 
White Witch = A 'Good Witch' who uses her powers for the Light and not the Darkness. Because most such Witches are or become Adepts of the Order of Witches, the term White Witch and Witch Adept are used interchangeably.
Witch = The Order of Witches is derived from the Witches, specifically those who come to see a central source of all power behind the various Crafts of Magick. For more info see The Witch. 
Witch Finders = Witch Finder, or Witch Hunters, are any of a number of groups who seek out Witches to kill or incarcerate them. Most Witch Finders down through history have been civil bounty hunters or religious zealots who believed Witches to be the children of the Devil.