The Collaborative International Dictionary of English v.0.48:

Orchard \Or"chard\, n. [AS. ortgeard, wyrtgeard, lit., wortyard,
   i. e., a yard for herbs; wyrt herb + geard yard. See Wort,
   Yard inclosure.]
   1. A garden. [Obs.]
      [1913 Webster]

   2. An inclosure containing fruit trees; also, the fruit
      trees, collectively; -- used especially of apples,
      peaches, pears, cherries, plums, or the like, less
      frequently of nutbearing trees and of sugar maple trees.
      [1913 Webster]

   Orchard grass (Bot.), a tall coarse grass (Dactylis
      glomerata), introduced into the United States from
      Europe. It grows usually in shady places, and is of value
      for forage and hay.

   Orchard house (Hort.), a glazed structure in which fruit
      trees are reared in pots.

   Orchard oriole (Zool.), a bright-colored American oriole
      (Icterus spurius), which frequents orchards. It is
      smaller and darker thah the Baltimore oriole.
      [1913 Webster]

WordNet (r) 3.0 (2006):

orchard
    n 1: garden consisting of a small cultivated wood without
         undergrowth [syn: grove, woodlet, orchard,
         plantation]

Moby Thesaurus II by Grady Ward, 1.0:

61 Moby Thesaurus words for "orchard":
   arable land, barnyard, barton, bocage, bosk, cattle ranch,
   chicken farm, collective farm, coppice, copse, cotton plantation,
   croft, dairy farm, demesne, demesne farm, dry farm, dude ranch,
   factory farm, fallow, farm, farmery, farmhold, farmland, farmplace,
   farmstead, farmyard, fruit farm, fur farm, grain farm, grange,
   grassland, grove, hacienda, holt, homecroft, homefarm, homestead,
   hurst, kibbutz, kolkhoz, location, mains, manor farm, pasture, pen,
   plantation, poultry farm, ranch, rancheria, rancho, shaw,
   sheep farm, spinney, station, steading, stock farm, toft, tope,
   truck farm, wood lot, woodlet



U.S. Gazetteer Places (2000):

Orchard, NE -- U.S. village in Nebraska
   Population (2000):    391
   Housing Units (2000): 208
   Land area (2000):     0.417248 sq. miles (1.080668 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    0.417248 sq. miles (1.080668 sq. km)
   FIPS code:            37210
   Located within:       Nebraska (NE), FIPS 31
   Location:             42.336036 N, 98.240091 W
   ZIP Codes (1990):     68764
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Orchard, NE
    Orchard


U.S. Gazetteer Places (2000):

Orchard, IA -- U.S. city in Iowa
   Population (2000):    88
   Housing Units (2000): 35
   Land area (2000):     0.088468 sq. miles (0.229132 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    0.088468 sq. miles (0.229132 sq. km)
   FIPS code:            59520
   Located within:       Iowa (IA), FIPS 19
   Location:             43.226995 N, 92.774567 W
   ZIP Codes (1990):     50460
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Orchard, IA
    Orchard


U.S. Gazetteer Places (2000):

Orchard, TX -- U.S. city in Texas
   Population (2000):    408
   Housing Units (2000): 156
   Land area (2000):     0.378147 sq. miles (0.979395 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    0.378147 sq. miles (0.979395 sq. km)
   FIPS code:            54192
   Located within:       Texas (TX), FIPS 48
   Location:             29.602015 N, 95.968821 W
   ZIP Codes (1990):
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Orchard, TX
    Orchard