'Professional' definitions:

Definition of 'professional'

From: WordNet
adjective
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" [ant: nonprofessional]
adjective
Of or relating to or suitable as a profession; "professional organizations"; "a professional field such as law"
adjective
Characteristic of or befitting a profession or one engaged in a profession; "professional conduct"; "professional ethics"; "a thoroughly professional performance" [ant: unprofessional]
adjective
Of or relating to a profession; "we need professional advice"; "professional training"; "professional equipment for his new office"
adjective
Engaged in by members of a profession; "professional occupations include medicine and the law and teaching"
noun
A person engaged in one of the learned professions [syn: professional, professional person]
noun
An athlete who plays for pay [syn: professional, pro] [ant: amateur]
noun
An authority qualified to teach apprentices [syn: master, professional]

Definition of 'Professional'

From: GCIDE
  • Professional \Pro*fes"sion*al\, a.
  • 1. Of or pertaining to a profession, or calling; conforming to the rules or standards of a profession; following a profession; as, professional knowledge; professional conduct. "Pride, not personal, but professional." --Macaulay. "A professional sneerer." --De Quincey. [1913 Webster]
  • 2. Engaged in by professionals; as, a professional race; -- opposed to amateur. [1913 Webster]

Definition of 'Professional'

From: GCIDE
  • Professional \Pro*fes"sion*al\, n. A person who prosecutes anything professionally, or for a livelihood, and not in the character of an amateur; a professional worker. [1913 Webster]

Synonyms of 'professional'

From: Moby Thesaurus