PROFESSIONAL

a. n.

3 definitions — Webster’s Dictionary (1828)


1.
a.

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.
a.

Engaged in by professionals; as, a professional race; -- opposed to amateur.

3.
n.

A person who prosecutes anything professionally, or for a livelihood, and not in the character of an amateur; a professional worker.