Definition of Professional
 

Definition 2 of the word Professional as quoted by www.dictionary.com

Professional
Conforming to the standards of a profession: professional ethics.

Definition of Professional as quoted by Websters Revised Unabridged Dictionary.

professional \Pro*fes"sion*al\, n. A person who prosecutes anything professionally, or for a livelihood, and not in the character of an amateur; a professional worker.

v. closed, clos·ing, clos·es (klz.)
v. tr.
To move (a door, for example) so that an opening or passage is covered or obstructed; shut.
To bar access to: closed the road for repairs.
To fill or stop up: closed the cracks with plaster.
To stop the operations of permanently or temporarily: closed down the factory.
To bring to an end; terminate: close a letter; close a bank account.
To bring together all the elements or parts of: Management closed ranks and ostracized the troublemaker.
To join or unite; bring into contact: close a circuit.
To draw or bind together the edges of: close a wound.
To complete the final details or negotiations on: close a deal.