The Collaborative International Dictionary of English v.0.48:

Seal \Seal\ (s[=e]l), n. [OE. sele, AS. seolh; akin to OHG.
   selah, Dan. sael, Sw. sj[aum]l, Icel. selr.] (Zool.)
   Any aquatic carnivorous mammal of the families Phocidae and
   Otariidae.
   [1913 Webster]

   Note: Seals inhabit seacoasts, and are found principally in
         the higher latitudes of both hemispheres. There are
         numerous species, bearing such popular names as sea
         lion, sea leopard, sea bear, or ursine seal,
         fur seal, and sea elephant. The bearded seal
         (Erignathus barbatus), the hooded seal (Cystophora
         cristata), and the ringed seal (Phoca foetida), are
         northern species. See also Eared seal, Harp seal,
         Monk seal, and Fur seal, under Eared, Harp,
         Monk, and Fur. Seals are much hunted for their
         skins and fur, and also for their oil, which in some
         species is very abundant.
         [1913 Webster]

   Harbor seal (Zool.), the common seal (Phoca vitulina). It
      inhabits both the North Atlantic and the North Pacific
      Ocean, and often ascends rivers; -- called also marbled
      seal, native seal, river seal, bay seal, land
      seal, sea calf, sea cat, sea dog, dotard,
      ranger, selchie, tangfish.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Ranger \Ran"ger\ (r[=a]n"j[~e]r), n.
   1. One who ranges; a rover; sometimes, one who ranges for
      plunder; a roving robber.
      [1913 Webster]

   2. That which separates or arranges; specifically, a sieve.
      [Obs.] "The tamis ranger." --Holland.
      [1913 Webster]

   3. A dog that beats the ground in search of game.
      [1913 Webster]

   4. One of a body of mounted troops, formerly armed with short
      muskets, who range over the country, and often fight on
      foot.
      [1913 Webster]

   5. The keeper of a public park or forest; formerly, a sworn
      officer of a forest, appointed by the king's letters
      patent, whose business was to walk through the forest,
      recover beasts that had strayed beyond its limits, watch
      the deer, present trespasses to the next court held for
      the forest, etc. [Eng.]

   Note: Rangers in U.S. national parks and national monuments
         perform a similar function.
         [1913 Webster +PJC]

WordNet (r) 3.0 (2006):

Ranger
    n 1: a member of the Texas state highway patrol; formerly a
         mounted lawman who maintained order on the frontier [syn:
         Texas Ranger, Ranger]
    2: an official who is responsible for managing and protecting an
       area of forest [syn: fire warden, forest fire fighter,
       ranger]
    3: a member of a military unit trained as shock troops for hit-
       and-run raids [syn: commando, ranger]

Moby Thesaurus II by Grady Ward, 1.0:

60 Moby Thesaurus words for "ranger":
   Audubon Society, Gurkhas, National Wildlife Service, SS,
   Sierra Club, Special Forces, Waffen-SS, air warden,
   arboriculturist, attendant, caretaker, castellan, conservationist,
   conservator, curator, custodian, deliverer, elite corps,
   elite troops, forest ranger, forester, game warden, gamekeeper,
   governor, guardian, guardian angel, guardsmen, janitor, keeper,
   lifeguard, lifesaver, logger, lumberjack, lumberman, marines,
   next friend, paratroops, preservationist, preserver, prochein ami,
   rescuer, safekeeper, saver, savior, shepherd, shock troops,
   silviculturist, special troops, steward, storm troops, taxidermist,
   timberman, tree farmer, warden, warder, wood chopper,
   woodcraftsman, woodcutter, woodman, woodsman



U.S. Gazetteer Places (2000):

Ranger, GA -- U.S. town in Georgia
   Population (2000):    85
   Housing Units (2000): 44
   Land area (2000):     0.816120 sq. miles (2.113741 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    0.816120 sq. miles (2.113741 sq. km)
   FIPS code:            63560
   Located within:       Georgia (GA), FIPS 13
   Location:             34.500175 N, 84.711392 W
   ZIP Codes (1990):     30734
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Ranger, GA
    Ranger


U.S. Gazetteer Places (2000):

Ranger, TX -- U.S. city in Texas
   Population (2000):    2584
   Housing Units (2000): 1214
   Land area (2000):     7.002005 sq. miles (18.135110 sq. km)
   Water area (2000):    0.132949 sq. miles (0.344337 sq. km)
   Total area (2000):    7.134954 sq. miles (18.479447 sq. km)
   FIPS code:            60632
   Located within:       Texas (TX), FIPS 48
   Location:             32.470102 N, 98.676734 W
   ZIP Codes (1990):     76470
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Ranger, TX
    Ranger