The meaning of the Acronym PRO is...

PRO is

• Perfectly Respectful Obedience
• Public Relations Officer
• Priority Repair Order

More Meanings For PRO:

• Graphics profile file (DOS)
• Profile Configuration Data
• Prolog language source code file
• Professional
• Professional
• licensed professional
• Precision Residue Opener
• Pekeng Ragnarok Online
• Public Relations Officer
• Performing Rights Organization
• People Resources And Organizations
• Proper Ramair Orientation
• Positive Recreation Opportunities
• Player Run Organization
• Probing Rectal Orrifices

PRO is also in:

• Chat
• Domain Names
• File Extensions
• General
• Hobbies
• Physics
• Toastmasters
• Unfiled