The Collaborative International Dictionary of English v.0.48:

gunshot \gun"shot`\, a.
   Made by the shot of a gun; as, a gunshot wound.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Gunshot \Gun"shot`\ (g[u^]n"sh[o^]t), n.
   1. Act of firing a gun; a shot.
      [1913 Webster]

   2. The distance to which shot can be thrown from a gun, so as
      to be effective; the reach or range of a gun.
      [1913 Webster]

            Those who are come over to the royal party are
            supposed to be out of gunshot.        --Dryden.
      [1913 Webster]

WordNet (r) 3.0 (2006):

gunshot
    n 1: the act of shooting a gun; "the gunfire endangered innocent
         bystanders"; "they retreated in the face of withering enemy
         fire" [syn: gunfire, gunshot]

Moby Thesaurus II by Grady Ward, 1.0:

45 Moby Thesaurus words for "gunshot":
   ace, bang, bark, bit, blast, bowshot, brief span, bullet, burst,
   cannon, close quarters, close range, crack, detonation, discharge,
   earreach, earshot, ejection, explosion, fulmination, fusillade,
   gun, gunfire, hair, hair space, hairbreadth, hairsbreadth, inch,
   little, little ways, pistol shot, pop, potshot, salvo,
   short distance, short piece, short way, shot, span,
   spitting distance, spray, step, stoneshot, tattoo, volley