What does RIO stand for?

What does RIO mean?

RIO	Rio De Janeiro International Airport, Rio De Janeiro, Rio de Janeiro, Brazil Regional » Airport Codes
RIO	Rio Tinto Ltd Business » ASX Symbols
RIO	Red Iron Oxide Academic & Science » Chemistry
RIO	Remote Instant Office Business » General
RIO	Research Instruction Online Business » General
RIO	Really Innovative Original Business » General
RIO	Reporting Information Online Business » General
RIO	Random Access Memory Input Output Computing » General
RIO	Riada Internet Objects Computing » General
RIO	Radx Input Output Computing » General
RIO	Resources Input Optimization Computing » General
RIO	Remote Input Output Computing » General
RIO	RAM (Random Access Memory) Input/ Output Computing » Hardware
RIO	Rock In Opposition Regional » Language Codes (3 Letters)
RIO	Rio Tinto Business » London Stock Exchange
RIO	Radio Information Officer Community » Media
RIO	Reviewers International Organization Community » Media
RIO	Radar Intercept Officer Governmental » Military
RIO	Rio de Janeiro Miscellaneous
RIO	Rail Incident Officer Governmental » Police
RIO	Radar Intercept Officer Business » Positions
RIO	Regional Inspection Officer Business » Positions
RIO	Ride It Out Governmental » Transportation
RIO	Ressoruces Input Optimisation Miscellaneous » Unclassified
RIO	Restore Iraqi Oil Miscellaneous » Unclassified

Rio de Janeiro, Rio(noun): the former capital and 2nd largest city of Brazil; chief Brazilian port; famous as a tourist attraction