coun·sel·or also coun·sel·lor 
(kounsə-lər, -slər)
(kounsə-lər, -slər)n.
1. A person who gives counsel; an adviser.
2. An attorney, especially a trial lawyer.
3. A person who supervises children at a summer camp.
4. A person, especially a licensed professional, who treats people with mental, emotional, and behavioral disorders and problems. See Usage Note at council.
counse·lor·ship′ n.