pro·fes·sion·al /prəˈfɛʃnəl, ˈfɛʃənḷ/
pro·fes·sion·al /prəˈfɛʃnəl, ənḷ/ 形容詞
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.
2. Engaged in by professionals; as, a professional race; -- opposed to amateur.
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.
adj 1: 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]
2: of or relating to or suitable as a profession; "professional
organizations"; "a professional field such as law"
3: characteristic of or befitting a profession or one engaged
in a profession; "professional conduct"; "professional
ethics"; "a thoroughly professional performance" [ant: unprofessional]
4: of or relating to a profession; "we need professional
advice"; "professional training"; "professional equipment
for his new office"
5: engaged in by members of a profession; "professional
occupations include medicine and the law and teaching"
n 1: a person engaged in one of the learned professions [syn: professional
2: an athlete who plays for pay [syn: pro] [ant: amateur]
3: an authority qualified to teach apprentices [syn: master]