A professional is commonly referred to as someone who is really good at what they do. The phrase literally means someone who turned that action into a career, or profession.
professional setting
Professional cooking is cooking for other people as a profession.
nutritionist
Phantom Power is best described as a way in which DC electric power can be transmitted through microphones. It is a term mainly used in the context of professional audio equipment.
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professional setting
The definition of professional is getting paid.
What is
A general definition of the term "professional" is somebody who does something at a level where they are qualified to do it, and are paid accordingly.
Professional cooking is cooking for other people as a profession.
A Professional writer or a record keeper
value in ethics
nutritionist
a professional nurse is a person who has completed a basic nursing education program and is licensed in his/her country or state to practice professional nursing.
Anyone who is paid to play a sport.
It depends on your definition of hardworking kids
A particular person's fame in a scientific, educational or technical field.