Professional ( adjective , noun )

(As an adjective)

Professional ( adjective )

1. Engaged in a specified activity as one's main paid occupation rather than as a pastime.
2. Relating to a profession and its members.
3. Having or showing the skill appropriate to a professional person; competent and efficient.

Origin:

Late middle english (in the sense "relating to a profession"): from latin professionalis, from professus "declared, professed", past participle of profiteri "declare publicly".

Examples:

1. She is a professional dancer.
2. He is a professional athlete.
3. This is a professional standard of work.
4. They gave a professional presentation.
5. It was a professional production.

(As a noun)

Professional ( noun )

1. Engaged in a specified activity as one's main paid occupation rather than as a pastime.
2. Relating to a profession and its members.
3. Having or showing the skill appropriate to a professional person; competent and efficient.

Origin:

Late middle english (in the sense "relating to a profession"): from latin professionalis, from professus "declared, professed", past participle of profiteri "declare publicly".

Examples:

1. She is a professional dancer.
2. He is a professional athlete.
3. This is a professional standard of work.
4. They gave a professional presentation.
5. It was a professional production.