The Collaborative International Dictionary of English v.0.48:

Phaeton \Pha"["e]*ton\ (f[=a]"[-e]*t[o^]n), n. [F. pha['e]ton a
   kind of carriage, fr. Pha['e]thon Pha["e]thon, the son of
   Helios. See Pha["e]thon.]
   1. A four-wheeled carriage (with or without a top), open, or
      having no side pieces, in front of the seat. It is drawn
      by one or two horses.
      [1913 Webster]

   2. See Pha["e]thon.
      [1913 Webster]

   3. (Zool.) A handsome American butterfly (Euphydryas
      Pha["e]ton syn. Melit[ae]a Pha["e]ton). The upper side
      of the wings is black, with orange-red spots and marginal
      crescents, and several rows of cream-colored spots; --
      called also Baltimore.
      [1913 Webster]

WordNet (r) 3.0 (2006):

Baltimore
    n 1: the largest city in Maryland; a major seaport and
         industrial center

U.S. Gazetteer Counties (2000):

Baltimore -- U.S. County in Maryland
   Population (2000):    754292
   Housing Units (2000): 313734
   Land area (2000):     598.586826 sq. miles (1550.332696 sq. km)
   Water area (2000):    83.440658 sq. miles (216.110304 sq. km)
   Total area (2000):    682.027484 sq. miles (1766.443000 sq. km)
   Located within:       Maryland (MD), FIPS 24
   Location:             39.372206 N, 76.612627 W
   Headwords:
    Baltimore
    Baltimore, MD
    Baltimore County
    Baltimore County, MD


U.S. Gazetteer Counties (2000):

Baltimore -- U.S. city in Maryland
   Population (2000):    651154
   Housing Units (2000): 300477
   Land area (2000):     80.804406 sq. miles (209.282442 sq. km)
   Water area (2000):    11.273710 sq. miles (29.198774 sq. km)
   Total area (2000):    92.078116 sq. miles (238.481216 sq. km)
   Located within:       Maryland (MD), FIPS 24
   Location:             39.307956 N, 76.617016 W
   Headwords:
    Baltimore
    Baltimore, MD
    Baltimore city
    Baltimore city, MD


U.S. Gazetteer Places (2000):

Baltimore, OH -- U.S. village in Ohio
   Population (2000):    2881
   Housing Units (2000): 1212
   Land area (2000):     1.781946 sq. miles (4.615218 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    1.781946 sq. miles (4.615218 sq. km)
   FIPS code:            03758
   Located within:       Ohio (OH), FIPS 39
   Location:             39.846319 N, 82.607503 W
   ZIP Codes (1990):     43105
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Baltimore, OH
    Baltimore


U.S. Gazetteer Places (2000):

Baltimore, MD -- U.S. city in Maryland
   Population (2000):    651154
   Housing Units (2000): 300477
   Land area (2000):     80.804406 sq. miles (209.282442 sq. km)
   Water area (2000):    11.273710 sq. miles (29.198774 sq. km)
   Total area (2000):    92.078116 sq. miles (238.481216 sq. km)
   FIPS code:            04000
   Located within:       Maryland (MD), FIPS 24
   Location:             39.307956 N, 76.617016 W
   ZIP Codes (1990):     21201 21202 21205 21206 21209 21210
                         21211 21212 21213 21214 21215 21216
                         21217 21218 21223 21224 21229 21230
                         21231 21239 21240
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Baltimore, MD
    Baltimore