The Collaborative International Dictionary of English v.0.48:

Stench \Stench\, v. t.
   To stanch. [Obs.] --Harvey.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Stench \Stench\, n. [AS. stenc a strong smell, fr. stincan. See
   Stink, v. i.]
   1. A smell; an odor. [Obs.]
      [1913 Webster]

            Clouds of savory stench involve the sky. --Dryden.
      [1913 Webster]

   2. An ill smell; an offensive odor; a stink. --Cowper.
      [1913 Webster]

   Stench trap, a contrivance to prevent stench or foul air
      from rising from the openings of sewers, drains, etc.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Stench \Stench\, v. t. [AS. stencan to emit a smell, fr. stincan
   to smell. See Stench, n.]
   To cause to emit a disagreeable odor; to cause to stink.
   [Obs.] --Young.
   [1913 Webster]

WordNet (r) 3.0 (2006):

stench
    n 1: a distinctive odor that is offensively unpleasant [syn:
         malodor, malodour, stench, stink, reek, fetor,
         foetor, mephitis]

Moby Thesaurus II by Grady Ward, 1.0:

65 Moby Thesaurus words for "stench":
   aroma, bar, bind, block, block up, blockade, breath, bung, caulk,
   chink, choke, choke off, choke up, clog, clog up, congest,
   constipate, cork, cover, dam, dam up, definite odor,
   detectable odor, effluvium, emanation, essence, exhalation, fetor,
   fill, fill up, flavor, foul, foul odor, fragrance, fume, funk, jam,
   mephitis, noisomeness, obstipate, obstruct, odor, pack, plug,
   plug up, redolence, reek, savor, scent, smell, spile, spoor,
   stanch, stay, stink, stop, stop up, stopper, stopple, stuff,
   stuff up, subtle odor, trace, trail, whiff