OSR meaning in Community ?

Answer: What is Old School Revival mean?

The Old School Renaissance, Old School Revival, or OSR, is a trend in tabletop role-playing games which draws inspiration from the earliest days of tabletop RPGs in the 1970s, especially Dungeons & Dragons. It consists of a loose network or community of gamers and game designers who share an interest in a certain style of play and set of game design principles.

reference

Full Form	Category
Online Student Records	Academic & Science
Office of Student Returns	Academic & Science
Office of Science and Research	Academic & Science
Organization of Student Representatives	Academic & Science
Outreach Student Representative	Academic & Science
Office of Sponsored Research	Academic & Science
Open Side Ruled	Academic & Science
Office for Sponsored Research	Academic & Science
Office For Survey Research	Academic & Science
Ostrava	Airport Code
Open Systems Resources, Inc.	Business
Organization Systems Renewal	Business
Open Space Reservation ( In real estate)	Business
Optical Solar Reflector	Business
Old School Renaissance	Community
Old School Revival	Community
Old School Roleplaying	Community
Old School Rules	Community
Office of School Readiness	Community
Ontario Student Record	Community
Out Station Reporter	Community
Oem Service Release	Computing
Office Service Release	Computing
Optical Switch Router	Computing
Oracle Service Registry	Computing
Open Source Robot	Computing
Operating System Resource	Computing
Over-sampling Ratio	Electronics
Over Sampling Rate	General
Original System Reference	General
Office of Student Research	General
Office of Survey Research	General
Original Seen & Returned	General
Office of Social Responsibility	General
Open Space Reservation	General
Open System Reference	General
Office of State Register	General
Optical Service Router	General
Order Storage Retrieval	General
Open Study Room	General
Online Syllabus Repository	General
Organizational Safety Reliability	General
One Sentence Review	General
On Stack Replacement	General
One Shot Rise	General
Oil Seed Rape	General
Offshore Special Regulations	General
Ocean Sentry Refresh	General
Operational Summary Report	General
Operational Safety Requirement	General
Overseas Service Ribbon	General
Optical Scanning Recognition	General
Office for Senior Resources	General
Oblivion Stutter Remover	General
Open Sky Roof	General
Oceanside Street Rods	General
Ol' Skool Rodz	General
Operateur Service Rapid	General
Operating Systems Review	General
Orchard Street Runners	General
Open Standards Requirement	General
Order Storage and Retrieval	General
Online Star Register	General
Oil Spill Remediation	General
Open Source Rebellion	General
Own-Source Revenue(s)	Governmental
Oil Spill Response	Governmental
Old Spanish Road	Governmental
Ohio State Reformatory	Governmental
Old Stage Route	Governmental
Office of State Revenue	Governmental
On-Site Rules	Internet
Oh S*** Run	Internet
Oxidative Stress Relief	Medical
Orthopedic Sport Rehab	Medical
Ostrava, Czech Republic	Regional
Oem (original Equipment Manufacturer) Service Release	Softwares
Operations Support Room	Space Science
Obital Ship Repair	Space Science