What does PRO stand for?

What does PRO mean?

PRO	Player Referee Organization Community » Sports
PRO	Predictable Research Online Internet
PRO	Pittsburgh Roleplaying Organization Community » Sports
PRO	Prolog language source code file Computing » File Extensions
PRO	Paddock Radical Options Community » Law
PRO	Profile Configuration Data Computing » File Extensions
PRO	Progressive Re-integration Opportunity Community » Law
PRO	Precision Residue Opener Academic & Science » Physics
PRO	Pittsburgh Relies On Community
PRO	Pride, Respect, and Opportunity Community » Law
PRO	Professional Rental Owner Business » Positions
PRO	Practical Regional Opportunities Business » International Business
PRO	Pekeng Ragnarok Online Miscellaneous » Hobbies
PRO	Performance Reward Options Business » Positions
PRO	Proper Ram-air Orientation Governmental » Military
PRO	Priority Repair Order Governmental » Military
PRO	People Relating to Others Community » Educational
PRO	Perfectly Respectful Obedience Governmental » Military
PRO	Privilege, Responsibility, and Opportunity Business » Positions
PRO	Public Record Office (UK Government) Governmental
PRO	Predicament, Response, and Outcome Community » Law
PRO	Probing Rectal Orifices Miscellaneous » Funnies
PRO	Public Relations Officer Governmental » State & Local
PRO	Public Record Office Governmental » State & Local
PRO	PROfessional (for licensed professionals only) Internet » Domain Names