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English definition of “professional”

professional

noun [C]     /prəˈfeʃənəl/
TRAINED someone who does a job that needs special training or educationEmployment status and types of work
WITH EXPERIENCE someone who has done a job for a long time and who does it with a lot of skill: She dealt with the problem like a true professional.Employment status and types of workSkilled, talented and able
SPORTS B2 someone who earns money for doing a sport or activity that most other people do as a hobby: a rugby professional → Opposite amateur nounEmployment status and types of workCompetitors and participants in sports and games
(Definition of professional noun from the Cambridge Learner's Dictionary © Cambridge University Press)

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