The Collaborative International Dictionary of English v.0.48:

Snout \Snout\ (snout), n. [OE. snoute, probably of Scand, or Low
   German origin; cf. LG. snute, D. snuit, G. schnauze, Sw.
   snut, snyte, Dan. snude, Icel. sn?ta to blow the nose;
   probably akin to E. snuff, v.t. Cf. Snite, Snot,
   Snuff.]
   1. The long, projecting nose of a beast, as of swine.
      [1913 Webster]

   2. The nose of a man; -- in contempt. --Hudibras.
      [1913 Webster]

   3. The nozzle of a pipe, hose, etc.
      [1913 Webster]

   4. (Zool.)
      (a) The anterior prolongation of the head of a gastropod;
          -- called also rostrum.
      (b) The anterior prolongation of the head of weevils and
          allied beetles.
          [1913 Webster]

   Snout beetle (Zool.), any one of many species of beetles
      having an elongated snout and belonging to the tribe
      Rhynchophora; a weevil.

   Snout moth (Zool.), any pyralid moth. See Pyralid.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Snout \Snout\, v. t.
   To furnish with a nozzle or point.
   [1913 Webster]

WordNet (r) 3.0 (2006):

snout
    n 1: a long projecting or anterior elongation of an animal's
         head; especially the nose [syn: snout, neb]
    2: informal terms for the nose [syn: beak, honker, hooter,
       nozzle, snoot, snout, schnozzle, schnoz]
    3: beaklike projection of the anterior part of the head of
       certain insects such as e.g. weevils [syn: snout,
       rostrum]

Moby Thesaurus II by Grady Ward, 1.0:

31 Moby Thesaurus words for "snout":
   antlia, beak, beezer, bib nozzle, bill, bugle, conk, muffle,
   muzzle, nares, neb, nib, nose, nostrils, nozzle, olfactory organ,
   pecker, pressure nozzle, proboscis, rhinarium, rose, rosehead,
   rostrum, schnozzle, shower head, smeller, snitch, snoot,
   spray nozzle, sprinkler head, trunk