The Collaborative International Dictionary of English v.0.48:

Hart \Hart\ (h[aum]rt), n. [OE. hart, hert, heort, AS. heort,
   heorot; akin to D. hert, OHG. hiruz, hirz, G. hirsch, Icel.
   hj["o]rtr, Dan. & Sw. hjort, L. cervus, and prob. to Gr.
   kerao`s horned, ke`ras horn. [root]230. See Horn.] (Zool.)
   A stag; the male of the red deer. See the Note under Buck.
   [1913 Webster]

         Goodliest of all the forest, hart and hind. --Milton.
   [1913 Webster]

WordNet (r) 3.0 (2006):

Hart
    n 1: United States playwright who collaborated with George S.
         Kaufman (1904-1961) [syn: Hart, Moss Hart]
    2: United States lyricist who collaborated with Richard Rodgers
       (1895-1943) [syn: Hart, Lorenz Hart, Lorenz Milton
       Hart]
    3: a male deer, especially an adult male red deer [syn: hart,
       stag]

Easton's 1897 Bible Dictionary:

Hart
   (Heb. 'ayal), a stag or male deer. It is ranked among the clean
   animals (Deut. 12:15; 14:5; 15:22), and was commonly killed for
   food (1 Kings 4:23). The hart is frequently alluded to in the
   poetical and prophetical books (Isa. 35:6; Cant. 2:8, 9; Lam.
   1:6; Ps. 42:1).


U.S. Gazetteer Counties (2000):

Hart -- U.S. County in Georgia
   Population (2000):    22997
   Housing Units (2000): 11111
   Land area (2000):     232.208961 sq. miles (601.418422 sq. km)
   Water area (2000):    24.209681 sq. miles (62.702783 sq. km)
   Total area (2000):    256.418642 sq. miles (664.121205 sq. km)
   Located within:       Georgia (GA), FIPS 13
   Location:             34.360857 N, 82.968511 W
   Headwords:
    Hart
    Hart, GA
    Hart County
    Hart County, GA


U.S. Gazetteer Counties (2000):

Hart -- U.S. County in Kentucky
   Population (2000):    17445
   Housing Units (2000): 8045
   Land area (2000):     415.930185 sq. miles (1077.254187 sq. km)
   Water area (2000):    1.982198 sq. miles (5.133869 sq. km)
   Total area (2000):    417.912383 sq. miles (1082.388056 sq. km)
   Located within:       Kentucky (KY), FIPS 21
   Location:             37.280263 N, 85.880213 W
   Headwords:
    Hart
    Hart, KY
    Hart County
    Hart County, KY


U.S. Gazetteer Places (2000):

Hart, TX -- U.S. city in Texas
   Population (2000):    1198
   Housing Units (2000): 410
   Land area (2000):     0.751337 sq. miles (1.945953 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    0.751337 sq. miles (1.945953 sq. km)
   FIPS code:            32576
   Located within:       Texas (TX), FIPS 48
   Location:             34.386723 N, 102.115035 W
   ZIP Codes (1990):     79043
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Hart, TX
    Hart


U.S. Gazetteer Places (2000):

Hart, MI -- U.S. city in Michigan
   Population (2000):    1950
   Housing Units (2000): 832
   Land area (2000):     1.916173 sq. miles (4.962866 sq. km)
   Water area (2000):    0.139536 sq. miles (0.361397 sq. km)
   Total area (2000):    2.055709 sq. miles (5.324263 sq. km)
   FIPS code:            36920
   Located within:       Michigan (MI), FIPS 26
   Location:             43.699439 N, 86.365774 W
   ZIP Codes (1990):     49420
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Hart, MI
    Hart