1.Engaged in a profession or engaging in as a profession or means of livelihood. "Began her professional career after the Olympics" , "Professional theater" , "Professional football" , "A professional cook" , "Professional actors and athletes"
2.Of or relating to or suitable as a profession. "A professional field such as law"
3.Characteristic of or befitting a profession or one engaged in a profession. "Professional ethics" , "A thoroughly professional performance"
4.Of or relating to a profession. "Professional training" , "Professional equipment for his new office"
5.Engaged in by members of a profession.
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