WordNet (r) 3.0 (2006):

Rio
    n 1: the former capital and 2nd largest city of Brazil; chief
         Brazilian port; famous as a tourist attraction [syn: Rio
         de Janeiro, Rio]

V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

RIO
       Redistributed Internet Objects (S3, VRML, Internet)


V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

RIO
       Remote Input/Output (Power4, IBM)


U.S. Gazetteer Places (2000):

Rio, WI -- U.S. village in Wisconsin
   Population (2000):    938
   Housing Units (2000): 401
   Land area (2000):     1.248275 sq. miles (3.233016 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    1.248275 sq. miles (3.233016 sq. km)
   FIPS code:            68100
   Located within:       Wisconsin (WI), FIPS 55
   Location:             43.447914 N, 89.240557 W
   ZIP Codes (1990):     53960
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Rio, WI
    Rio


U.S. Gazetteer Places (2000):

Rio, FL -- U.S. Census Designated Place in Florida
   Population (2000):    1028
   Housing Units (2000): 622
   Land area (2000):     0.400226 sq. miles (1.036581 sq. km)
   Water area (2000):    0.507395 sq. miles (1.314146 sq. km)
   Total area (2000):    0.907621 sq. miles (2.350727 sq. km)
   FIPS code:            60550
   Located within:       Florida (FL), FIPS 12
   Location:             27.218419 N, 80.240037 W
   ZIP Codes (1990):
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Rio, FL
    Rio


U.S. Gazetteer Places (2000):

Rio, IL -- U.S. village in Illinois
   Population (2000):    240
   Housing Units (2000): 101
   Land area (2000):     0.325366 sq. miles (0.842695 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    0.325366 sq. miles (0.842695 sq. km)
   FIPS code:            64148
   Located within:       Illinois (IL), FIPS 17
   Location:             41.110236 N, 90.398996 W
   ZIP Codes (1990):     61472
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Rio, IL
    Rio