WordNet (r) 3.0 (2006):

Irena
    n 1: type genus of the Irenidae: fairy bluebirds [syn: Irena,
         genus Irena]

U.S. Gazetteer Places (2000):

Irena, MO -- U.S. village in Missouri
   Population (2000):    33
   Housing Units (2000): 9
   Land area (2000):     1.007108 sq. miles (2.608398 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    1.007108 sq. miles (2.608398 sq. km)
   FIPS code:            35324
   Located within:       Missouri (MO), FIPS 29
   Location:             40.537819 N, 94.387394 W
   ZIP Codes (1990):
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Irena, MO
    Irena