Air Nauru - ICAO designator (FAAC)
Converter Remote On (SAUS)
Cooper Cameron - NYSE symbol
Cooper Cameron Corp. - NYSE symbol (SAG)
Reality or Nothing (WDAA)
Receive Only (SAUS)
Receiving Only (SAUS)
Recruiters Online Network - Association (EA)
Remaining - or Rest Overnight - Aviation
Remain Over Night (SAUS)
Remain Overnight - Military technology (DDF)
Remain Overnight Position - Military (VNW)
Remote - Alaska - Seismograph station code, US Geological Survey - Closed (SEIS)
Report of NAC/ENTAC (MCD)
Research Octane Number - Fuels and lubricants
Research-Octane-Number - Fuel technology
Resilient Overlay Networks
Rest Overnight - or Rest-of-Night - Pronounced "ron" - Chance for a candidate to catch some sleep during a traveling political campaign
Rollin White Arms - NCIC firearms make code (NCIC)
Romanian - GeoNet three-character language code (GEON)
Rondon - Colombia - Airport symbol - Obsolete (OAG)
Ronga - Language code (ETLW)
Run Occurence Number (SAUS)
Run Occurrence Number (IAA)
Run-of-Network - Online advertising (NETL)
Squadron (MUGU)