Ruby on Rails (Miscellaneous » Funnies)
* Rate Of Return (Business » Accounting)
* Reach Out and Read (Community » Educational)
* Rotate Right (Computing » Assembly)
* Room Of Requirement (Computing » Databases)
* Remote Outdoor Router (Computing » Networking)
* Residual Oil Remover (Governmental » Military)
* Rise of Rome (Regional)
* Risk of Ruin (Business » General)
* Retail Office Residential (Miscellaneous » Awards & Medals)
* Resident And Ordinarily Resident (Community)
* Koro, Palau Islands (Regional » Airport Codes)
* Rookie Of The Race (Community » Sports)
* Rottweiler Overland Railroad (Rottweiler Rescue Help) (Community)
Abbreviations dictionary. 2012.