What is PROFESSIONAL?

This are some definition of a Professional

professional traditionally means a person who has obtained a degree in a professional field. The term professional is used more generally to denote a white collar working person, or a person who performs commercially in a field typically reserved for hobbyists or amateurs.

professional engaged in a profession or engaging in as a profession or means of livelihood; "the professional man or woman possesses distinctive qualifications"; "began her professional career after the Olympics"; "professional theater"; "professional football"; "a professional cook"; "professional actors and athletes"
-or pertaining to a profession, or calling; conforming to the rules or standards of a profession; following a profession; as, professional knowledge; professional conduct.
-A person who prosecutes anything professionally, or for a livelihood, and not in the character of an amateur; a professional worker.
references:



Ethics in Information Technology by George Reynolds (2006)
http://www.thefreedictionary.com/professional
http://www.brainyquote.com/words/pr/professional207054.html

-> Professional are those who engaged in a profession or engaging in as a
profession or means of livelihood.
-> It also a person engaged in one of the learned professions or an athlete who
plays for pay.

Resources: Wikipedia.com