/ prəˈfeʃənəlɪzəm; NAmE / noun [ U ]
1.
the high standard that you expect from a person who is well trained in a particular job :
We were impressed by the professionalism of the staff.
2.
great skill and ability :
the power and professionalism of her performance
3.
the practice of using professional players in sport :
Increased professionalism has changed the game radically.