The Collaborative International Dictionary of English v.0.48:

Searchlight \Search"light`\, n.
   (a) An apparatus for projecting a powerful beam of light of
       approximately parallel rays, usually devised so that it
       can be swiveled about.
   (b) The beam of light projecting by this apparatus.
       [Webster 1913 Suppl.]

WordNet (r) 3.0 (2006):

searchlight
    n 1: a light source with reflectors that projects a beam of
         light in a particular direction

U.S. Gazetteer Places (2000):

Searchlight, NV -- U.S. Census Designated Place in Nevada
   Population (2000):    576
   Housing Units (2000): 444
   Land area (2000):     13.074523 sq. miles (33.862858 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    13.074523 sq. miles (33.862858 sq. km)
   FIPS code:            65600
   Located within:       Nevada (NV), FIPS 32
   Location:             35.468455 N, 114.916932 W
   ZIP Codes (1990):
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Searchlight, NV
    Searchlight